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Materials Data on V3OF11 by Materials Project

VF4V2OF7 crystallizes in the triclinic P1 space group. The structure is two-dimensional and consists of two V2OF7 sheets oriented in the (0, 0, 1) direction and one VF4 sheet oriented in the (0, 0, 1) direction. In one of the V2OF7 sheets, there are two inequivalent V+4.33+ sites. In the first V+4.33+ site, V+4.33+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 27–32°. The V–O bond length is 1.62 Å. There are a spread of V–F bond distances ranging from 1.84–1.98 Å. In the second V+4.33+ site, V+4.33+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedra tilt angles range from 27–32°. There are a spread of V–F bond distances ranging from 1.76–2.00 Å. O2- is bonded in a single-bond geometry to one V+4.33+ atom. There are seven inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the second F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the third F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the fourth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the fifth F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the sixth F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the seventh F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In one of the V2OF7 sheets, there are two inequivalent V+4.33+ sites. In the first V+4.33+ site, V+4.33+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 23–35°. The V–O bond length is 2.06 Å. There are a spread of V–F bond distances ranging from 1.77–2.00 Å. In the second V+4.33+ site, V+4.33+ is bonded to one O2- and five F1- atoms to form distorted corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 23–35°. The V–O bond length is 1.65 Å. There are a spread of V–F bond distances ranging from 1.77–2.22 Å. O2- is bonded in a distorted bent 150 degrees geometry to two V+4.33+ atoms. There are seven inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the third F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the fourth F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the fifth F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the sixth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the seventh F1- site, F1- is bonded in a distorted bent 150 degrees geometry to two V+4.33+ atoms. In the VF4 sheet, there are two inequivalent V+4.33+ sites. In the first V+4.33+ site, V+4.33+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedra tilt angles range from 30–31°. There are a spread of V–F bond distances ranging from 1.77–1.97 Å. In the second V+4.33+ site, V+4.33+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedra tilt angles range from 30–31°. There are a spread of V–F bond distances ranging from 1.77–1.97 Å. There are eight inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the third F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the fifth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the sixth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the seventh F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the eighth F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom.

36 MATERIALS SCIENCE↗

Materials Data on VO2F by Materials Project

FVO2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent V5+ sites. In the first V5+ site, V5+ is bonded in a 6-coordinate geometry to four O2- and two F1- atoms. There are a spread of V–O bond distances ranging from 1.64–2.27 Å. There is one shorter (1.94 Å) and one longer (1.96 Å) V–F bond length. In the second V5+ site, V5+ is bonded in a 6-coordinate geometry to four O2- and two F1- atoms. There are a spread of V–O bond distances ranging from 1.66–2.30 Å. There are one shorter (2.04 Å) and one longer (2.07 Å) V–F bond lengths. In the third V5+ site, V5+ is bonded to four O2- and two F1- atoms to form distorted corner-sharing VO4F2 octahedra. The corner-sharing octahedra tilt angles range from 7–37°. There are a spread of V–O bond distances ranging from 1.65–2.21 Å. There are one shorter (1.95 Å) and one longer (2.13 Å) V–F bond lengths. In the fourth V5+ site, V5+ is bonded to four O2- and two F1- atoms to form distorted corner-sharing VO4F2 octahedra. The corner-sharing octahedra tilt angles range from 7–37°. There are a spread of V–O bond distances ranging from 1.64–2.26 Å. There is one shorter (1.89 Å) and one longer (1.98 Å) V–F bond length. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two V5+ atoms. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two V5+ atoms. In the third O2- site, O2- is bonded in a distorted single-bond geometry to two V5+ atoms. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to two V5+ atoms. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to two V5+ atoms. In the sixth O2- site, O2- is bonded in a linear geometry to two V5+ atoms. In the seventh O2- site, O2- is bonded in a bent 150 degrees geometry to two V5+ atoms. In the eighth O2- site, O2- is bonded in a linear geometry to two V5+ atoms. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted bent 150 degrees geometry to two V5+ atoms. In the second F1- site, F1- is bonded in a linear geometry to two V5+ atoms. In the third F1- site, F1- is bonded in a distorted bent 150 degrees geometry to two V5+ atoms. In the fourth F1- site, F1- is bonded in a distorted bent 150 degrees geometry to two V5+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on VOF2 by Materials Project

VOF2 crystallizes in the trigonal P3_1 space group. The structure is three-dimensional. there are two inequivalent V4+ sites. In the first V4+ site, V4+ is bonded to two O2- and four F1- atoms to form corner-sharing VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 23–38°. There is one shorter (1.68 Å) and one longer (1.95 Å) V–O bond length. There are a spread of V–F bond distances ranging from 1.97–2.08 Å. In the second V4+ site, V4+ is bonded to two O2- and four F1- atoms to form corner-sharing VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 23–38°. There is one shorter (1.70 Å) and one longer (2.07 Å) V–O bond length. There are a spread of V–F bond distances ranging from 1.95–1.99 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two V4+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two V4+ atoms. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two V4+ atoms. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to two V4+ atoms. In the third F1- site, F1- is bonded in a bent 150 degrees geometry to two V4+ atoms. In the fourth F1- site, F1- is bonded in a bent 150 degrees geometry to two V4+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on V4(OF3)3 by Materials Project

V4(OF3)3 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent V+3.75+ sites. In the first V+3.75+ site, V+3.75+ is bonded to two O2- and four F1- atoms to form corner-sharing VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 21–28°. Both V–O bond lengths are 1.96 Å. There is two shorter (1.96 Å) and two longer (2.01 Å) V–F bond length. In the second V+3.75+ site, V+3.75+ is bonded to two O2- and four F1- atoms to form corner-sharing VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 19–31°. There is one shorter (1.69 Å) and one longer (1.96 Å) V–O bond length. There are a spread of V–F bond distances ranging from 1.94–2.04 Å. In the third V+3.75+ site, V+3.75+ is bonded to two O2- and four F1- atoms to form corner-sharing VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 21–35°. There is one shorter (1.69 Å) and one longer (1.96 Å) V–O bond length. There are a spread of V–F bond distances ranging from 1.95–2.02 Å. In the fourth V+3.75+ site, V+3.75+ is bonded to two O2- and four F1- atoms to form corner-sharing VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 22–31°. There is one shorter (1.94 Å) and one longer (1.97 Å) V–O bond length. There are a spread of V–F bond distances ranging from 1.96–2.02 Å. In the fifth V+3.75+ site, V+3.75+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 22–35°. The V–O bond length is 1.70 Å. There are a spread of V–F bond distances ranging from 1.96–2.02 Å. In the sixth V+3.75+ site, V+3.75+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 22–38°. The V–O bond length is 1.67 Å. There are a spread of V–F bond distances ranging from 1.96–2.06 Å. In the seventh V+3.75+ site, V+3.75+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 22–38°. The V–O bond length is 1.69 Å. There are a spread of V–F bond distances ranging from 1.95–2.04 Å. In the eighth V+3.75+ site, V+3.75+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 19–31°. The V–O bond length is 1.69 Å. There are a spread of V–F bond distances ranging from 1.96–2.04 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two V+3.75+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the fourth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two V+3.75+ atoms. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two V+3.75+ atoms. In the sixth O2- site, O2- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. There are eighteen inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the third F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the fourth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the fifth F1- site, F1- is bonded in a distorted bent 150 degrees geometry to two V+3.75+ atoms. In the sixth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the seventh F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the eighth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the ninth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the tenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the eleventh F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the twelfth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the thirteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the fourteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the fifteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the sixteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the seventeenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the eighteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on VO2F by Materials Project

FVO2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are four inequivalent V5+ sites. In the first V5+ site, V5+ is bonded to four O2- and two F1- atoms to form distorted corner-sharing VO4F2 octahedra. The corner-sharing octahedra tilt angles range from 19–35°. There are a spread of V–O bond distances ranging from 1.72–2.12 Å. There is one shorter (1.86 Å) and one longer (2.00 Å) V–F bond length. In the second V5+ site, V5+ is bonded to four O2- and two F1- atoms to form distorted corner-sharing VO4F2 octahedra. The corner-sharing octahedra tilt angles range from 19–35°. There are a spread of V–O bond distances ranging from 1.66–1.95 Å. There are one shorter (2.18 Å) and one longer (2.23 Å) V–F bond lengths. In the third V5+ site, V5+ is bonded to four O2- and two equivalent F1- atoms to form corner-sharing VO4F2 octahedra. The corner-sharing octahedra tilt angles range from 31–35°. There is two shorter (1.78 Å) and two longer (1.91 Å) V–O bond length. Both V–F bond lengths are 1.96 Å. In the fourth V5+ site, V5+ is bonded to four O2- and two equivalent F1- atoms to form corner-sharing VO4F2 octahedra. The corner-sharing octahedra tilt angles range from 28–35°. There is two shorter (1.80 Å) and two longer (1.90 Å) V–O bond length. Both V–F bond lengths are 1.90 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to two V5+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two V5+ atoms. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to two V5+ atoms. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to two V5+ atoms. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to two V5+ atoms. In the sixth O2- site, O2- is bonded in a bent 150 degrees geometry to two V5+ atoms. There are three inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted bent 150 degrees geometry to two V5+ atoms. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to two V5+ atoms. In the third F1- site, F1- is bonded in a 2-coordinate geometry to two V5+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on V4(OF3)3 by Materials Project

V4(OF3)3 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent V+3.75+ sites. In the first V+3.75+ site, V+3.75+ is bonded to two O2- and four F1- atoms to form corner-sharing VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 21–26°. There is one shorter (1.98 Å) and one longer (1.99 Å) V–O bond length. There is one shorter (1.95 Å) and three longer (1.96 Å) V–F bond length. In the second V+3.75+ site, V+3.75+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 21–31°. The V–O bond length is 1.70 Å. There are a spread of V–F bond distances ranging from 1.94–2.02 Å. In the third V+3.75+ site, V+3.75+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 21–32°. The V–O bond length is 1.67 Å. There are a spread of V–F bond distances ranging from 1.97–2.04 Å. In the fourth V+3.75+ site, V+3.75+ is bonded to two O2- and four F1- atoms to form corner-sharing VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 21–31°. There is one shorter (1.93 Å) and one longer (1.97 Å) V–O bond length. There are a spread of V–F bond distances ranging from 1.96–2.01 Å. In the fifth V+3.75+ site, V+3.75+ is bonded to two O2- and four F1- atoms to form corner-sharing VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 19–32°. There is one shorter (1.70 Å) and one longer (1.96 Å) V–O bond length. There are a spread of V–F bond distances ranging from 1.96–2.05 Å. In the sixth V+3.75+ site, V+3.75+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 22–38°. The V–O bond length is 1.68 Å. There are a spread of V–F bond distances ranging from 1.95–2.05 Å. In the seventh V+3.75+ site, V+3.75+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 22–38°. The V–O bond length is 1.67 Å. There are a spread of V–F bond distances ranging from 1.97–2.05 Å. In the eighth V+3.75+ site, V+3.75+ is bonded to two O2- and four F1- atoms to form corner-sharing VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 19–30°. There is one shorter (1.69 Å) and one longer (1.96 Å) V–O bond length. There are a spread of V–F bond distances ranging from 1.95–2.06 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two V+3.75+ atoms. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two V+3.75+ atoms. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the fourth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two V+3.75+ atoms. In the fifth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two V+3.75+ atoms. In the sixth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two V+3.75+ atoms. There are eighteen inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the third F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the fourth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the fifth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the sixth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the seventh F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the eighth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the ninth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the tenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the eleventh F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the twelfth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the thirteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the fourteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the fifteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the sixteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the seventeenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms. In the eighteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.75+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on VOF by Materials Project

VOF is beta Vanadium nitride-derived structured and crystallizes in the monoclinic Pm space group. The structure is three-dimensional. there are eight inequivalent V3+ sites. In the first V3+ site, V3+ is bonded to two O2- and four F1- atoms to form VO2F4 octahedra that share corners with eight VO4F2 octahedra and edges with two equivalent VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 49–50°. There is one shorter (1.93 Å) and one longer (1.94 Å) V–O bond length. There are two shorter (2.06 Å) and two longer (2.07 Å) V–F bond lengths. In the second V3+ site, V3+ is bonded to three O2- and three F1- atoms to form VO3F3 octahedra that share corners with eight VO4F2 octahedra and edges with two equivalent VO3F3 octahedra. The corner-sharing octahedra tilt angles range from 47–51°. There is one shorter (1.89 Å) and two longer (1.98 Å) V–O bond length. There are one shorter (2.11 Å) and two longer (2.13 Å) V–F bond lengths. In the third V3+ site, V3+ is bonded to two O2- and four F1- atoms to form VO2F4 octahedra that share corners with eight VO4F2 octahedra and edges with two equivalent VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 49–50°. There is one shorter (1.93 Å) and one longer (1.94 Å) V–O bond length. All V–F bond lengths are 2.06 Å. In the fourth V3+ site, V3+ is bonded to two O2- and four F1- atoms to form VO2F4 octahedra that share corners with eight VO3F3 octahedra and edges with two equivalent VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 48–52°. There is one shorter (1.92 Å) and one longer (1.94 Å) V–O bond length. There are two shorter (2.07 Å) and two longer (2.08 Å) V–F bond lengths. In the fifth V3+ site, V3+ is bonded to four O2- and two F1- atoms to form VO4F2 octahedra that share corners with eight VO2F4 octahedra and edges with two equivalent VO4F2 octahedra. The corner-sharing octahedra tilt angles range from 47–51°. All V–O bond lengths are 2.01 Å. There are one shorter (2.12 Å) and one longer (2.14 Å) V–F bond lengths. In the sixth V3+ site, V3+ is bonded to three O2- and three F1- atoms to form a mixture of corner and edge-sharing VO3F3 octahedra. The corner-sharing octahedra tilt angles range from 47–52°. There is one shorter (1.90 Å) and two longer (1.97 Å) V–O bond length. There are two shorter (2.12 Å) and one longer (2.22 Å) V–F bond lengths. In the seventh V3+ site, V3+ is bonded to four O2- and two F1- atoms to form VO4F2 octahedra that share corners with eight VO2F4 octahedra and edges with two equivalent VO4F2 octahedra. The corner-sharing octahedra tilt angles range from 49–50°. There are two shorter (2.01 Å) and two longer (2.02 Å) V–O bond lengths. Both V–F bond lengths are 2.12 Å. In the eighth V3+ site, V3+ is bonded to four O2- and two F1- atoms to form VO4F2 octahedra that share corners with eight VO2F4 octahedra and edges with two equivalent VO4F2 octahedra. The corner-sharing octahedra tilt angles range from 48–50°. There are two shorter (2.01 Å) and two longer (2.02 Å) V–O bond lengths. There are one shorter (2.12 Å) and one longer (2.13 Å) V–F bond lengths. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the second O2- site, O2- is bonded in a trigonal planar geometry to three V3+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the eighth O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. There are eight inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the second F1- site, F1- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the third F1- site, F1- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the fourth F1- site, F1- is bonded in a 3-coordinate geometry to three V3+ atoms. In the fifth F1- site, F1- is bonded in a 3-coordinate geometry to three V3+ atoms. In the sixth F1- site, F1- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the seventh F1- site, F1- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the eighth F1- site, F1- is bonded in a 3-coordinate geometry to three V3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on VOF by Materials Project

VOF is beta Vanadium nitride-derived structured and crystallizes in the monoclinic Pm space group. The structure is three-dimensional. there are eight inequivalent V3+ sites. In the first V3+ site, V3+ is bonded to three O2- and three F1- atoms to form VO3F3 octahedra that share corners with eight VO2F4 octahedra and edges with two equivalent VO3F3 octahedra. The corner-sharing octahedra tilt angles range from 47–52°. There is one shorter (1.89 Å) and two longer (1.97 Å) V–O bond length. There are two shorter (2.13 Å) and one longer (2.16 Å) V–F bond lengths. In the second V3+ site, V3+ is bonded to four O2- and two F1- atoms to form VO4F2 octahedra that share corners with eight VO2F4 octahedra and edges with two equivalent VO4F2 octahedra. The corner-sharing octahedra tilt angles range from 47–50°. All V–O bond lengths are 2.02 Å. There are one shorter (2.09 Å) and one longer (2.13 Å) V–F bond lengths. In the third V3+ site, V3+ is bonded to two O2- and four F1- atoms to form VO2F4 octahedra that share corners with eight VO4F2 octahedra and edges with two equivalent VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 49–50°. Both V–O bond lengths are 1.93 Å. All V–F bond lengths are 2.06 Å. In the fourth V3+ site, V3+ is bonded to two O2- and four F1- atoms to form VO2F4 octahedra that share corners with eight VO3F3 octahedra and edges with two equivalent VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 49–52°. Both V–O bond lengths are 1.93 Å. There are two shorter (2.06 Å) and two longer (2.07 Å) V–F bond lengths. In the fifth V3+ site, V3+ is bonded to two O2- and four F1- atoms to form VO2F4 octahedra that share corners with eight VO3F3 octahedra and edges with two equivalent VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 49–52°. There is one shorter (1.93 Å) and one longer (1.94 Å) V–O bond length. There are two shorter (2.06 Å) and two longer (2.07 Å) V–F bond lengths. In the sixth V3+ site, V3+ is bonded to three O2- and three F1- atoms to form VO3F3 octahedra that share corners with eight VO4F2 octahedra and edges with two equivalent VO3F3 octahedra. The corner-sharing octahedra tilt angles range from 47–52°. There is one shorter (1.89 Å) and two longer (1.97 Å) V–O bond length. There are two shorter (2.13 Å) and one longer (2.18 Å) V–F bond lengths. In the seventh V3+ site, V3+ is bonded to four O2- and two F1- atoms to form VO4F2 octahedra that share corners with eight VO3F3 octahedra and edges with two equivalent VO4F2 octahedra. The corner-sharing octahedra tilt angles range from 47–51°. There are two shorter (2.01 Å) and two longer (2.02 Å) V–O bond lengths. There are one shorter (2.10 Å) and one longer (2.14 Å) V–F bond lengths. In the eighth V3+ site, V3+ is bonded to four O2- and two F1- atoms to form VO4F2 octahedra that share corners with eight VO2F4 octahedra and edges with two equivalent VO4F2 octahedra. The corner-sharing octahedra tilt angles range from 49–50°. All V–O bond lengths are 2.02 Å. Both V–F bond lengths are 2.12 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the eighth O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. There are eight inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the second F1- site, F1- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the third F1- site, F1- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the fourth F1- site, F1- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the fifth F1- site, F1- is bonded in a 3-coordinate geometry to three V3+ atoms. In the sixth F1- site, F1- is bonded in a 3-coordinate geometry to three V3+ atoms. In the seventh F1- site, F1- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the eighth F1- site, F1- is bonded in a distorted trigonal planar geometry to three V3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on V4OF11 by Materials Project

V4OF11 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are five inequivalent V+3.25+ sites. In the first V+3.25+ site, V+3.25+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 24–34°. The V–O bond length is 1.69 Å. There are a spread of V–F bond distances ranging from 1.95–2.01 Å. In the second V+3.25+ site, V+3.25+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedra tilt angles range from 32–33°. There are a spread of V–F bond distances ranging from 1.96–1.99 Å. In the third V+3.25+ site, V+3.25+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedra tilt angles range from 26–28°. There are a spread of V–F bond distances ranging from 1.97–2.00 Å. In the fourth V+3.25+ site, V+3.25+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedra tilt angles range from 32–33°. There is four shorter (1.97 Å) and two longer (1.99 Å) V–F bond length. In the fifth V+3.25+ site, V+3.25+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 24–34°. The V–O bond length is 1.95 Å. There are a spread of V–F bond distances ranging from 1.97–2.00 Å. O2- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. There are eleven inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the third F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the fourth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the fifth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the sixth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the seventh F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the eighth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the ninth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the tenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the eleventh F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on V3OF11 by Materials Project

VF4V2OF7 crystallizes in the triclinic P1 space group. The structure is two-dimensional and consists of two V2OF7 sheets oriented in the (0, 0, 1) direction and one VF4 sheet oriented in the (0, 0, 1) direction. In each V2OF7 sheet, there are two inequivalent V+4.33+ sites. In the first V+4.33+ site, V+4.33+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 23–34°. The V–O bond length is 2.07 Å. There are a spread of V–F bond distances ranging from 1.77–2.01 Å. In the second V+4.33+ site, V+4.33+ is bonded to one O2- and five F1- atoms to form distorted corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 23–34°. The V–O bond length is 1.65 Å. There are a spread of V–F bond distances ranging from 1.77–2.22 Å. O2- is bonded in a distorted bent 150 degrees geometry to two V+4.33+ atoms. There are seven inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the third F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the fourth F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the fifth F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the sixth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the seventh F1- site, F1- is bonded in a distorted bent 150 degrees geometry to two V+4.33+ atoms. In the VF4 sheet, V+4.33+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedral tilt angles are 31°. There is two shorter (1.77 Å) and four longer (1.97 Å) V–F bond length. There are eight inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent V+4.33+ atoms. In the second F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. The F–V bond length is 1.77 Å. In the fourth F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent V+4.33+ atoms. In the fifth F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent V+4.33+ atoms. In the sixth F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. The F–V bond length is 1.77 Å. In the seventh F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the eighth F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent V+4.33+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on VOF by Materials Project

VOF is beta Vanadium nitride-derived structured and crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are four inequivalent V3+ sites. In the first V3+ site, V3+ is bonded to three O2- and three F1- atoms to form a mixture of edge and corner-sharing VO3F3 octahedra. The corner-sharing octahedra tilt angles range from 47–55°. There are a spread of V–O bond distances ranging from 1.93–2.00 Å. There are two shorter (2.09 Å) and one longer (2.16 Å) V–F bond lengths. In the second V3+ site, V3+ is bonded to four O2- and two F1- atoms to form VO4F2 octahedra that share corners with eight VO3F3 octahedra and edges with two equivalent VO2F4 octahedra. The corner-sharing octahedra tilt angles range from 49–55°. There are a spread of V–O bond distances ranging from 2.00–2.09 Å. Both V–F bond lengths are 2.09 Å. In the third V3+ site, V3+ is bonded to three O2- and three F1- atoms to form a mixture of edge and corner-sharing VO3F3 octahedra. The corner-sharing octahedra tilt angles range from 45–54°. There are a spread of V–O bond distances ranging from 1.92–2.01 Å. There are two shorter (2.09 Å) and one longer (2.18 Å) V–F bond lengths. In the fourth V3+ site, V3+ is bonded to two O2- and four F1- atoms to form VO2F4 octahedra that share corners with eight VO3F3 octahedra and edges with two equivalent VO4F2 octahedra. The corner-sharing octahedra tilt angles range from 45–51°. There is one shorter (1.95 Å) and one longer (1.98 Å) V–O bond length. There are a spread of V–F bond distances ranging from 1.98–2.08 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to three V3+ atoms. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a 3-coordinate geometry to three V3+ atoms. In the second F1- site, F1- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the third F1- site, F1- is bonded in a distorted trigonal planar geometry to three V3+ atoms. In the fourth F1- site, F1- is bonded in a 3-coordinate geometry to three V3+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on V2OF5 by Materials Project

V2OF5 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent V+3.50+ sites. In the first V+3.50+ site, V+3.50+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 24–31°. The V–O bond length is 1.96 Å. There are a spread of V–F bond distances ranging from 1.97–1.99 Å. In the second V+3.50+ site, V+3.50+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 23–32°. The V–O bond length is 1.69 Å. There are a spread of V–F bond distances ranging from 1.96–2.03 Å. In the third V+3.50+ site, V+3.50+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 24–34°. The V–O bond length is 1.69 Å. There are a spread of V–F bond distances ranging from 1.95–2.04 Å. In the fourth V+3.50+ site, V+3.50+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 23–33°. The V–O bond length is 1.69 Å. There are a spread of V–F bond distances ranging from 1.96–2.03 Å. In the fifth V+3.50+ site, V+3.50+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 23–33°. The V–O bond length is 1.96 Å. There are a spread of V–F bond distances ranging from 1.96–1.98 Å. In the sixth V+3.50+ site, V+3.50+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 23–34°. The V–O bond length is 1.96 Å. There are a spread of V–F bond distances ranging from 1.97–1.99 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. There are fifteen inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the third F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the fourth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the fifth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the sixth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the seventh F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the eighth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the ninth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the tenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the eleventh F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the twelfth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the thirteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the fourteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms. In the fifteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.50+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on V6O7F5 by Materials Project

V6O7F5 is zeta iron carbide-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent V+3.17+ sites. In the first V+3.17+ site, V+3.17+ is bonded to four O2- and two F1- atoms to form a mixture of edge and corner-sharing VO4F2 octahedra. The corner-sharing octahedra tilt angles range from 45–55°. There are a spread of V–O bond distances ranging from 1.80–1.98 Å. There are one shorter (2.16 Å) and one longer (2.20 Å) V–F bond lengths. In the second V+3.17+ site, V+3.17+ is bonded to four O2- and two F1- atoms to form VO4F2 octahedra that share corners with eight VO4F2 octahedra and edges with two VO3F3 octahedra. The corner-sharing octahedra tilt angles range from 47–52°. There are a spread of V–O bond distances ranging from 2.01–2.04 Å. Both V–F bond lengths are 2.07 Å. In the third V+3.17+ site, V+3.17+ is bonded to three O2- and three F1- atoms to form a mixture of edge and corner-sharing VO3F3 octahedra. The corner-sharing octahedra tilt angles range from 45–55°. There is two shorter (1.91 Å) and one longer (2.05 Å) V–O bond length. There are a spread of V–F bond distances ranging from 2.08–2.16 Å. In the fourth V+3.17+ site, V+3.17+ is bonded to four O2- and two F1- atoms to form a mixture of edge and corner-sharing VO4F2 octahedra. The corner-sharing octahedra tilt angles range from 47–56°. There are a spread of V–O bond distances ranging from 1.99–2.03 Å. There are one shorter (2.14 Å) and one longer (2.15 Å) V–F bond lengths. In the fifth V+3.17+ site, V+3.17+ is bonded to three O2- and three F1- atoms to form a mixture of edge and corner-sharing VO3F3 octahedra. The corner-sharing octahedra tilt angles range from 47–55°. There are a spread of V–O bond distances ranging from 1.95–2.02 Å. There are a spread of V–F bond distances ranging from 2.01–2.13 Å. In the sixth V+3.17+ site, V+3.17+ is bonded to three O2- and three F1- atoms to form a mixture of edge and corner-sharing VO3F3 octahedra. The corner-sharing octahedra tilt angles range from 49–56°. There are a spread of V–O bond distances ranging from 1.91–2.07 Å. There are a spread of V–F bond distances ranging from 2.06–2.11 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to three V+3.17+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three V+3.17+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to three V+3.17+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to three V+3.17+ atoms. In the fifth O2- site, O2- is bonded in a trigonal planar geometry to three V+3.17+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to three V+3.17+ atoms. In the seventh O2- site, O2- is bonded in a trigonal planar geometry to three V+3.17+ atoms. There are five inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted trigonal planar geometry to three V+3.17+ atoms. In the second F1- site, F1- is bonded in a 3-coordinate geometry to three V+3.17+ atoms. In the third F1- site, F1- is bonded in a distorted trigonal planar geometry to three V+3.17+ atoms. In the fourth F1- site, F1- is bonded in a distorted trigonal planar geometry to three V+3.17+ atoms. In the fifth F1- site, F1- is bonded in a distorted trigonal planar geometry to three V+3.17+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on V6O5F19 by Materials Project

(VOF3)4V2OF7 crystallizes in the triclinic P1 space group. The structure is two-dimensional and consists of one V2OF7 sheet oriented in the (0, 0, 1) direction and two VOF3 sheets oriented in the (0, 0, 1) direction. In the V2OF7 sheet, there are two inequivalent V+4.83+ sites. In the first V+4.83+ site, V+4.83+ is bonded in a 5-coordinate geometry to one O2- and four F1- atoms. The V–O bond length is 1.63 Å. There are a spread of V–F bond distances ranging from 1.76–1.97 Å. In the second V+4.83+ site, V+4.83+ is bonded in an octahedral geometry to one O2- and five F1- atoms. The V–O bond length is 2.13 Å. There are a spread of V–F bond distances ranging from 1.77–2.04 Å. O2- is bonded in a 2-coordinate geometry to two V+4.83+ atoms. There are seven inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.83+ atoms. In the second F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the fourth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.83+ atoms. In the fifth F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the sixth F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the seventh F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In each VOF3 sheet, there are two inequivalent V+4.83+ sites. In the first V+4.83+ site, V+4.83+ is bonded in a 6-coordinate geometry to two O2- and four F1- atoms. There is one shorter (1.65 Å) and one longer (2.15 Å) V–O bond length. There are a spread of V–F bond distances ranging from 1.77–2.38 Å. In the second V+4.83+ site, V+4.83+ is bonded in a 5-coordinate geometry to two O2- and three F1- atoms. There is one shorter (1.64 Å) and one longer (2.07 Å) V–O bond length. There are a spread of V–F bond distances ranging from 1.77–1.82 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two V+4.83+ atoms. In the second O2- site, O2- is bonded in a 1-coordinate geometry to two V+4.83+ atoms. There are six inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the fifth F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the sixth F1- site, F1- is bonded in a distorted single-bond geometry to two V+4.83+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on V3OF11 by Materials Project

VF4V2OF7 crystallizes in the monoclinic P2_1 space group. The structure is two-dimensional and consists of two V2OF7 sheets oriented in the (0, 0, 1) direction and one VF4 sheet oriented in the (0, 0, 1) direction. In each V2OF7 sheet, there are two inequivalent V+4.33+ sites. In the first V+4.33+ site, V+4.33+ is bonded to one O2- and five F1- atoms to form distorted corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 23–35°. The V–O bond length is 1.65 Å. There are a spread of V–F bond distances ranging from 1.77–2.22 Å. In the second V+4.33+ site, V+4.33+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 23–35°. The V–O bond length is 2.06 Å. There are a spread of V–F bond distances ranging from 1.77–2.01 Å. O2- is bonded in a distorted bent 150 degrees geometry to two V+4.33+ atoms. There are seven inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the second F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the fifth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the sixth F1- site, F1- is bonded in a distorted bent 150 degrees geometry to two V+4.33+ atoms. In the seventh F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the VF4 sheet, V+4.33+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedral tilt angles are 31°. There is two shorter (1.77 Å) and four longer (1.97 Å) V–F bond length. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent V+4.33+ atoms. In the second F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the fourth F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent V+4.33+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on V6O5F19 by Materials Project

(VOF3)4V2OF7 crystallizes in the triclinic P1 space group. The structure is two-dimensional and consists of one V2OF7 sheet oriented in the (0, 0, 1) direction and two VOF3 sheets oriented in the (0, 0, 1) direction. In the V2OF7 sheet, there are two inequivalent V+4.83+ sites. In the first V+4.83+ site, V+4.83+ is bonded in an octahedral geometry to one O2- and five F1- atoms. The V–O bond length is 2.13 Å. There are a spread of V–F bond distances ranging from 1.77–2.05 Å. In the second V+4.83+ site, V+4.83+ is bonded in a 5-coordinate geometry to one O2- and four F1- atoms. The V–O bond length is 1.64 Å. There are a spread of V–F bond distances ranging from 1.76–1.98 Å. O2- is bonded in a 2-coordinate geometry to two V+4.83+ atoms. There are seven inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.83+ atoms. In the second F1- site, F1- is bonded in a distorted single-bond geometry to one V+4.83+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the fifth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.83+ atoms. In the sixth F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the seventh F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In each VOF3 sheet, there are two inequivalent V+4.83+ sites. In the first V+4.83+ site, V+4.83+ is bonded in a 6-coordinate geometry to two O2- and four F1- atoms. There is one shorter (1.65 Å) and one longer (2.12 Å) V–O bond length. There are a spread of V–F bond distances ranging from 1.77–2.36 Å. In the second V+4.83+ site, V+4.83+ is bonded in a 5-coordinate geometry to two O2- and three F1- atoms. There is one shorter (1.65 Å) and one longer (2.06 Å) V–O bond length. There is two shorter (1.77 Å) and one longer (1.81 Å) V–F bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two V+4.83+ atoms. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two V+4.83+ atoms. There are six inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the third F1- site, F1- is bonded in a distorted single-bond geometry to two V+4.83+ atoms. In the fourth F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the fifth F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom. In the sixth F1- site, F1- is bonded in a single-bond geometry to one V+4.83+ atom.

36 MATERIALS SCIENCE↗

Materials Data on V3OF11 by Materials Project

VF4V2OF7 crystallizes in the triclinic P-1 space group. The structure is two-dimensional and consists of two V2OF7 sheets oriented in the (0, 0, 1) direction and one VF4 sheet oriented in the (0, 0, 1) direction. In each V2OF7 sheet, there are two inequivalent V+4.33+ sites. In the first V+4.33+ site, V+4.33+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedra tilt angles range from 27–32°. There are a spread of V–F bond distances ranging from 1.75–1.98 Å. In the second V+4.33+ site, V+4.33+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 27–32°. The V–O bond length is 1.62 Å. There are a spread of V–F bond distances ranging from 1.84–1.96 Å. O2- is bonded in a single-bond geometry to one V+4.33+ atom. There are seven inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the third F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the fifth F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the sixth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the seventh F1- site, F1- is bonded in a bent 150 degrees geometry to two V+4.33+ atoms. In the VF4 sheet, V+4.33+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedral tilt angles are 30°. There is two shorter (1.77 Å) and four longer (1.96 Å) V–F bond length. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent V+4.33+ atoms. In the third F1- site, F1- is bonded in a bent 150 degrees geometry to two equivalent V+4.33+ atoms. In the fourth F1- site, F1- is bonded in a single-bond geometry to one V+4.33+ atom. The F–V bond length is 1.77 Å.

36 MATERIALS SCIENCE↗

Materials Data on V4OF11 by Materials Project

V4OF11 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are eight inequivalent V+3.25+ sites. In the first V+3.25+ site, V+3.25+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 23–31°. The V–O bond length is 1.97 Å. There are a spread of V–F bond distances ranging from 1.96–1.99 Å. In the second V+3.25+ site, V+3.25+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedra tilt angles range from 31–32°. There are a spread of V–F bond distances ranging from 1.97–1.99 Å. In the third V+3.25+ site, V+3.25+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 24–32°. The V–O bond length is 1.97 Å. There are a spread of V–F bond distances ranging from 1.96–2.00 Å. In the fourth V+3.25+ site, V+3.25+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedra tilt angles range from 31–32°. There are a spread of V–F bond distances ranging from 1.97–1.99 Å. In the fifth V+3.25+ site, V+3.25+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 24–36°. The V–O bond length is 1.69 Å. There are a spread of V–F bond distances ranging from 1.96–2.03 Å. In the sixth V+3.25+ site, V+3.25+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedra tilt angles range from 28–36°. There are a spread of V–F bond distances ranging from 1.96–2.00 Å. In the seventh V+3.25+ site, V+3.25+ is bonded to one O2- and five F1- atoms to form corner-sharing VOF5 octahedra. The corner-sharing octahedra tilt angles range from 23–36°. The V–O bond length is 1.68 Å. There are a spread of V–F bond distances ranging from 1.96–2.04 Å. In the eighth V+3.25+ site, V+3.25+ is bonded to six F1- atoms to form corner-sharing VF6 octahedra. The corner-sharing octahedra tilt angles range from 28–36°. There are a spread of V–F bond distances ranging from 1.96–2.00 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. There are twenty-two inequivalent F1- sites. In the first F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the second F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the third F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the fourth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the fifth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the sixth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the seventh F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the eighth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the ninth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the tenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the eleventh F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the twelfth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the thirteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the fourteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the fifteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the sixteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the seventeenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the eighteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the nineteenth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the twentieth F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the twenty-first F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms. In the twenty-second F1- site, F1- is bonded in a bent 150 degrees geometry to two V+3.25+ atoms.

36 MATERIALS SCIENCE↗