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DOE OSTI2020

Materials Data on Cs5SiAs3 by Materials Project

Cs5SiAs3 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are five inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 5-coordinate geometry to five As3- atoms. There are a spread of Cs–As bond distances ranging from 3.73–3.91 Å. In the second Cs1+ site, Cs1+ is bonded in a 3-coordinate geometry to five As3- atoms. There are a spread of Cs–As bond distances ranging from 3.67–4.00 Å. In the third Cs1+ site, Cs1+ is bonded in a 3-coordinate geometry to three As3- atoms. There are one shorter (3.81 Å) and two longer (3.83 Å) Cs–As bond lengths. In the fourth Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to four As3- atoms. There are a spread of Cs–As bond distances ranging from 3.97–4.03 Å. In the fifth Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to four As3- atoms. There are a spread of Cs–As bond distances ranging from 3.66–3.78 Å. Si4+ is bonded in a trigonal planar geometry to three As3- atoms. There are two shorter (2.32 Å) and one longer (2.33 Å) Si–As bond lengths. There are three inequivalent As3- sites. In the first As3- site, As3- is bonded in a 1-coordinate geometry to nine Cs1+ and one Si4+ atom. In the second As3- site, As3- is bonded in a 1-coordinate geometry to five Cs1+ and one Si4+ atom. In the third As3- site, As3- is bonded in a 1-coordinate geometry to seven Cs1+ and one Si4+ atom.

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Materials Data on Cs5GeAs3 by Materials Project

Cs5GeAs3 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are five inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 5-coordinate geometry to five As3- atoms. There are a spread of Cs–As bond distances ranging from 3.74–3.94 Å. In the second Cs1+ site, Cs1+ is bonded in a 3-coordinate geometry to five As3- atoms. There are a spread of Cs–As bond distances ranging from 3.66–4.04 Å. In the third Cs1+ site, Cs1+ is bonded in a 6-coordinate geometry to six As3- atoms. There are a spread of Cs–As bond distances ranging from 3.96–4.25 Å. In the fourth Cs1+ site, Cs1+ is bonded in a 3-coordinate geometry to five As3- atoms. There are a spread of Cs–As bond distances ranging from 3.81–4.11 Å. In the fifth Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to four As3- atoms. There are a spread of Cs–As bond distances ranging from 3.69–3.78 Å. Ge4+ is bonded in a trigonal planar geometry to three As3- atoms. There are two shorter (2.40 Å) and one longer (2.42 Å) Ge–As bond lengths. There are three inequivalent As3- sites. In the first As3- site, As3- is bonded in a 1-coordinate geometry to nine Cs1+ and one Ge4+ atom. In the second As3- site, As3- is bonded in a 1-coordinate geometry to seven Cs1+ and one Ge4+ atom. In the third As3- site, As3- is bonded in a 1-coordinate geometry to nine Cs1+ and one Ge4+ atom.

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Materials Data on Cs5Sb8 by Materials Project

Cs5Sb8 is Magnesium tetraboride-like structured and crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are five inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 8-coordinate geometry to eight Sb+0.62- atoms. There are a spread of Cs–Sb bond distances ranging from 3.86–4.33 Å. In the second Cs1+ site, Cs1+ is bonded in a 7-coordinate geometry to seven Sb+0.62- atoms. There are a spread of Cs–Sb bond distances ranging from 3.77–4.30 Å. In the third Cs1+ site, Cs1+ is bonded in a 7-coordinate geometry to seven Sb+0.62- atoms. There are a spread of Cs–Sb bond distances ranging from 3.93–4.39 Å. In the fourth Cs1+ site, Cs1+ is bonded in a 7-coordinate geometry to seven Sb+0.62- atoms. There are a spread of Cs–Sb bond distances ranging from 3.80–4.24 Å. In the fifth Cs1+ site, Cs1+ is bonded in a 8-coordinate geometry to eight Sb+0.62- atoms. There are a spread of Cs–Sb bond distances ranging from 3.86–4.32 Å. There are eight inequivalent Sb+0.62- sites. In the first Sb+0.62- site, Sb+0.62- is bonded in a 7-coordinate geometry to five Cs1+ and two Sb+0.62- atoms. There are one shorter (2.81 Å) and one longer (2.94 Å) Sb–Sb bond lengths. In the second Sb+0.62- site, Sb+0.62- is bonded in a 8-coordinate geometry to six Cs1+ and two Sb+0.62- atoms. The Sb–Sb bond length is 2.89 Å. In the third Sb+0.62- site, Sb+0.62- is bonded in a 8-coordinate geometry to six Cs1+ and two Sb+0.62- atoms. There are one shorter (2.86 Å) and one longer (2.89 Å) Sb–Sb bond lengths. In the fourth Sb+0.62- site, Sb+0.62- is bonded in a 6-coordinate geometry to three Cs1+ and three Sb+0.62- atoms. There are two shorter (2.84 Å) and one longer (2.99 Å) Sb–Sb bond lengths. In the fifth Sb+0.62- site, Sb+0.62- is bonded in a 7-coordinate geometry to five Cs1+ and two Sb+0.62- atoms. In the sixth Sb+0.62- site, Sb+0.62- is bonded in a 7-coordinate geometry to four Cs1+ and three Sb+0.62- atoms. In the seventh Sb+0.62- site, Sb+0.62- is bonded in a 7-coordinate geometry to five Cs1+ and two Sb+0.62- atoms. The Sb–Sb bond length is 2.86 Å. In the eighth Sb+0.62- site, Sb+0.62- is bonded in a 6-coordinate geometry to three Cs1+ and three Sb+0.62- atoms. The Sb–Sb bond length is 2.95 Å.

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Materials Data on CsSbOF4 by Materials Project

CsSbOF4 crystallizes in the orthorhombic Cmce space group. The structure is three-dimensional. there are three inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 9-coordinate geometry to one O2- and eight F1- atoms. The Cs–O bond length is 3.35 Å. There are a spread of Cs–F bond distances ranging from 3.17–3.42 Å. In the second Cs1+ site, Cs1+ is bonded in a 8-coordinate geometry to eight F1- atoms. There are a spread of Cs–F bond distances ranging from 3.18–3.27 Å. In the third Cs1+ site, Cs1+ is bonded in a 8-coordinate geometry to two equivalent O2- and six F1- atoms. Both Cs–O bond lengths are 3.21 Å. There are a spread of Cs–F bond distances ranging from 3.14–3.36 Å. There are two inequivalent Sb5+ sites. In the first Sb5+ site, Sb5+ is bonded to two O2- and four F1- atoms to form corner-sharing SbO2F4 octahedra. The corner-sharing octahedra tilt angles range from 46–48°. There is one shorter (1.95 Å) and one longer (1.96 Å) Sb–O bond length. There are a spread of Sb–F bond distances ranging from 1.94–1.96 Å. In the second Sb5+ site, Sb5+ is bonded to two equivalent O2- and four F1- atoms to form corner-sharing SbO2F4 octahedra. The corner-sharing octahedral tilt angles are 46°. Both Sb–O bond lengths are 1.96 Å. There are a spread of Sb–F bond distances ranging from 1.94–1.96 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to one Cs1+ and two Sb5+ atoms. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Cs1+ and two equivalent Sb5+ atoms. There are seven inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted single-bond geometry to two Cs1+ and one Sb5+ atom. In the second F1- site, F1- is bonded in a distorted single-bond geometry to one Cs1+ and one Sb5+ atom. In the third F1- site, F1- is bonded in a distorted single-bond geometry to one Cs1+ and one Sb5+ atom. In the fourth F1- site, F1- is bonded in a single-bond geometry to one Cs1+ and one Sb5+ atom. In the fifth F1- site, F1- is bonded in a distorted single-bond geometry to three Cs1+ and one Sb5+ atom. In the sixth F1- site, F1- is bonded in a distorted single-bond geometry to two equivalent Cs1+ and one Sb5+ atom. In the seventh F1- site, F1- is bonded in a distorted single-bond geometry to three Cs1+ and one Sb5+ atom.

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Materials Data on Cs2UTa6(Cl5O)3 by Materials Project

Cs2UTa6(OCl5)3 crystallizes in the trigonal P-31c space group. The structure is three-dimensional. Cs is bonded in a 12-coordinate geometry to twelve Cl atoms. There are a spread of Cs–Cl bond distances ranging from 3.52–4.02 Å. U is bonded in a trigonal planar geometry to three equivalent O and six equivalent Cl atoms. All U–O bond lengths are 2.33 Å. All U–Cl bond lengths are 3.18 Å. Ta is bonded in a 5-coordinate geometry to one O and four Cl atoms. The Ta–O bond length is 2.03 Å. There are a spread of Ta–Cl bond distances ranging from 2.48–2.61 Å. O is bonded in a distorted T-shaped geometry to one U and two equivalent Ta atoms. There are three inequivalent Cl sites. In the first Cl site, Cl is bonded in a 4-coordinate geometry to two equivalent Cs, one U, and one Ta atom. In the second Cl site, Cl is bonded in a 3-coordinate geometry to one Cs and two equivalent Ta atoms. In the third Cl site, Cl is bonded in a 2-coordinate geometry to two equivalent Cs and two equivalent Ta atoms.

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Materials Data on Cs5Te3H4NCl18 by Materials Project

Cs5(TeCl6)3NH4 crystallizes in the trigonal P3m1 space group. The structure is three-dimensional and consists of one ammonium molecule and one Cs5(TeCl6)3 framework. In the Cs5(TeCl6)3 framework, there are five inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded to twelve Cl1- atoms to form CsCl12 cuboctahedra that share corners with twelve CsCl12 cuboctahedra, faces with three equivalent CsCl12 cuboctahedra, and faces with four TeCl6 octahedra. All Cs–Cl bond lengths are 3.76 Å. In the second Cs1+ site, Cs1+ is bonded to twelve Cl1- atoms to form CsCl12 cuboctahedra that share corners with twelve CsCl12 cuboctahedra, faces with six CsCl12 cuboctahedra, and faces with four TeCl6 octahedra. All Cs–Cl bond lengths are 3.76 Å. In the third Cs1+ site, Cs1+ is bonded to twelve Cl1- atoms to form CsCl12 cuboctahedra that share corners with twelve CsCl12 cuboctahedra, faces with three equivalent CsCl12 cuboctahedra, and faces with four TeCl6 octahedra. All Cs–Cl bond lengths are 3.76 Å. In the fourth Cs1+ site, Cs1+ is bonded to twelve Cl1- atoms to form CsCl12 cuboctahedra that share corners with nine CsCl12 cuboctahedra, faces with six CsCl12 cuboctahedra, and faces with four TeCl6 octahedra. There are nine shorter (3.76 Å) and three longer (3.77 Å) Cs–Cl bond lengths. In the fifth Cs1+ site, Cs1+ is bonded to twelve Cl1- atoms to form CsCl12 cuboctahedra that share corners with nine CsCl12 cuboctahedra, faces with six CsCl12 cuboctahedra, and faces with four TeCl6 octahedra. There are nine shorter (3.76 Å) and three longer (3.77 Å) Cs–Cl bond lengths. There are three inequivalent Te4+ sites. In the first Te4+ site, Te4+ is bonded to six Cl1- atoms to form TeCl6 octahedra that share faces with five CsCl12 cuboctahedra. All Te–Cl bond lengths are 2.58 Å. In the second Te4+ site, Te4+ is bonded to six Cl1- atoms to form TeCl6 octahedra that share faces with eight CsCl12 cuboctahedra. All Te–Cl bond lengths are 2.58 Å. In the third Te4+ site, Te4+ is bonded to six Cl1- atoms to form TeCl6 octahedra that share faces with seven CsCl12 cuboctahedra. All Te–Cl bond lengths are 2.58 Å. There are six inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted single-bond geometry to three Cs1+ and one Te4+ atom. In the second Cl1- site, Cl1- is bonded in a distorted single-bond geometry to four Cs1+ and one Te4+ atom. In the third Cl1- site, Cl1- is bonded in a distorted single-bond geometry to four Cs1+ and one Te4+ atom. In the fourth Cl1- site, Cl1- is bonded in a distorted single-bond geometry to four Cs1+ and one Te4+ atom. In the fifth Cl1- site, Cl1- is bonded in a distorted single-bond geometry to two Cs1+ and one Te4+ atom. In the sixth Cl1- site, Cl1- is bonded in a distorted single-bond geometry to three Cs1+ and one Te4+ atom.

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Materials Data on CsCoH18N6(ClO2)4 by Materials Project

Cs(O2Cl)4Co(NH3)6 crystallizes in the trigonal R-3 space group. The structure is two-dimensional and consists of three azane;cobalt molecules and three Cs(O2Cl)4 sheets oriented in the (0, 0, 1) direction. In each Cs(O2Cl)4 sheet, Cs1+ is bonded in a distorted body-centered cubic geometry to six equivalent O2- and two equivalent Cl1- atoms. All Cs–O bond lengths are 3.09 Å. Both Cs–Cl bond lengths are 3.56 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Cl1- atom. The O–Cl bond length is 1.47 Å. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one Cs1+ and one Cl1- atom. The O–Cl bond length is 1.46 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a distorted single-bond geometry to one Cs1+ atom. In the second Cl1- site, Cl1- is bonded in a tetrahedral geometry to four O2- atoms.

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Materials Data on CsTlF3 by Materials Project

CsTlF3 is (Cubic) Perovskite structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. Cs is bonded to twelve F atoms to form CsF12 cuboctahedra that share corners with twelve equivalent CsF12 cuboctahedra, faces with six equivalent CsF12 cuboctahedra, and faces with eight equivalent TlF6 octahedra. There are a spread of Cs–F bond distances ranging from 3.34–3.45 Å. Tl is bonded to six F atoms to form TlF6 octahedra that share corners with six equivalent TlF6 octahedra and faces with eight equivalent CsF12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–2°. All Tl–F bond lengths are 2.40 Å. There are three inequivalent F sites. In the first F site, F is bonded in a distorted linear geometry to four equivalent Cs and two equivalent Tl atoms. In the second F site, F is bonded in a distorted linear geometry to four equivalent Cs and two equivalent Tl atoms. In the third F site, F is bonded in a distorted linear geometry to four equivalent Cs and two equivalent Tl atoms.

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Materials Data on CsNaF3 by Materials Project

CsNaF3 is Pb (Zr_0.50 Ti_0.48) O_3 structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. Cs is bonded to twelve F atoms to form CsF12 cuboctahedra that share corners with twelve equivalent CsF12 cuboctahedra, faces with six equivalent CsF12 cuboctahedra, and faces with eight equivalent NaF6 octahedra. There are a spread of Cs–F bond distances ranging from 3.08–3.39 Å. Na is bonded to six F atoms to form NaF6 octahedra that share corners with six equivalent NaF6 octahedra and faces with eight equivalent CsF12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–4°. There are a spread of Na–F bond distances ranging from 2.28–2.31 Å. There are three inequivalent F sites. In the first F site, F is bonded in a distorted linear geometry to four equivalent Cs and two equivalent Na atoms. In the second F site, F is bonded in a distorted linear geometry to four equivalent Cs and two equivalent Na atoms. In the third F site, F is bonded in a distorted linear geometry to four equivalent Cs and two equivalent Na atoms.

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Materials Data on CsSeBr3 by Materials Project

CsSeBr3 is (Cubic) Perovskite structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. Cs is bonded to twelve Br atoms to form CsBr12 cuboctahedra that share corners with twelve equivalent CsBr12 cuboctahedra, faces with six equivalent CsBr12 cuboctahedra, and faces with eight equivalent SeBr6 octahedra. There are a spread of Cs–Br bond distances ranging from 3.87–3.99 Å. Se is bonded to six Br atoms to form SeBr6 octahedra that share corners with six equivalent SeBr6 octahedra and faces with eight equivalent CsBr12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are four shorter (2.78 Å) and two longer (2.79 Å) Se–Br bond lengths. There are three inequivalent Br sites. In the first Br site, Br is bonded to four equivalent Cs and two equivalent Se atoms to form a mixture of edge, face, and corner-sharing BrCs4Se2 octahedra. The corner-sharing octahedra tilt angles range from 0–61°. In the second Br site, Br is bonded to four equivalent Cs and two equivalent Se atoms to form a mixture of edge, face, and corner-sharing BrCs4Se2 octahedra. The corner-sharing octahedra tilt angles range from 1–61°. In the third Br site, Br is bonded to four equivalent Cs and two equivalent Se atoms to form a mixture of edge, face, and corner-sharing BrCs4Se2 octahedra. The corner-sharing octahedra tilt angles range from 0–61°.

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Materials Data on CsNaF3 by Materials Project

CsNaF3 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Cs is bonded in a 9-coordinate geometry to nine F atoms. There are a spread of Cs–F bond distances ranging from 2.96–3.35 Å. Na is bonded in a 6-coordinate geometry to six F atoms. There are a spread of Na–F bond distances ranging from 2.23–2.43 Å. There are three inequivalent F sites. In the first F site, F is bonded in a 2-coordinate geometry to three equivalent Cs and two equivalent Na atoms. In the second F site, F is bonded in a 5-coordinate geometry to two equivalent Cs and three equivalent Na atoms. In the third F site, F is bonded in a 5-coordinate geometry to four equivalent Cs and one Na atom.

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Materials Data on Cs3BO3 by Materials Project

Cs3BO3 crystallizes in the orthorhombic Pbam space group. The structure is three-dimensional. there are five inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded to six O2- atoms to form distorted corner-sharing CsO6 pentagonal pyramids. There are a spread of Cs–O bond distances ranging from 3.14–3.24 Å. In the second Cs1+ site, Cs1+ is bonded in a 3-coordinate geometry to five O2- atoms. There are a spread of Cs–O bond distances ranging from 2.88–3.33 Å. In the third Cs1+ site, Cs1+ is bonded in a 3-coordinate geometry to three O2- atoms. There are one shorter (2.86 Å) and two longer (2.94 Å) Cs–O bond lengths. In the fourth Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to six O2- atoms. There are a spread of Cs–O bond distances ranging from 3.00–3.48 Å. In the fifth Cs1+ site, Cs1+ is bonded in a 4-coordinate geometry to six O2- atoms. There are a spread of Cs–O bond distances ranging from 3.01–3.45 Å. There are two inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.40 Å) and two longer (1.41 Å) B–O bond length. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is one shorter (1.40 Å) and two longer (1.41 Å) B–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to five Cs1+ and one B3+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to five Cs1+ and one B3+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to five Cs1+ and one B3+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to six Cs1+ and one B3+ atom.

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Materials Data on Cs2KNa by Materials Project

Cs2KNa crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Cs2KNa ribbons oriented in the (0, 1, 0) direction. Cs is bonded in a linear geometry to one K and one Na atom. The Cs–K bond length is 4.66 Å. The Cs–Na bond length is 4.20 Å. K is bonded in a linear geometry to two equivalent Cs atoms. Na is bonded in a linear geometry to two equivalent Cs atoms.

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Materials Data on Cs2VCl5O4 by Materials Project

Cs2VO4Cl5 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Cs is bonded in a 8-coordinate geometry to eight Cl atoms. There are a spread of Cs–Cl bond distances ranging from 3.34–3.67 Å. V is bonded in an octahedral geometry to four equivalent O and two equivalent Cl atoms. All V–O bond lengths are 1.84 Å. Both V–Cl bond lengths are 2.36 Å. O is bonded in a single-bond geometry to one V atom. There are three inequivalent Cl sites. In the first Cl site, Cl is bonded in a distorted single-bond geometry to three equivalent Cs and one V atom. In the second Cl site, Cl is bonded in a see-saw-like geometry to four equivalent Cs atoms. In the third Cl site, Cl is bonded in a linear geometry to two equivalent Cs atoms.

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Materials Data on CsTlBr3 by Materials Project

CsTlBr3 is (Cubic) Perovskite structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. Cs is bonded to twelve Br atoms to form CsBr12 cuboctahedra that share corners with twelve equivalent CsBr12 cuboctahedra, faces with six equivalent CsBr12 cuboctahedra, and faces with eight equivalent TlBr6 octahedra. There are a spread of Cs–Br bond distances ranging from 4.09–4.21 Å. Tl is bonded to six Br atoms to form TlBr6 octahedra that share corners with six equivalent TlBr6 octahedra and faces with eight equivalent CsBr12 cuboctahedra. The corner-sharing octahedra tilt angles range from 1–3°. There are three shorter (2.93 Å) and three longer (2.94 Å) Tl–Br bond lengths. There are three inequivalent Br sites. In the first Br site, Br is bonded to four equivalent Cs and two equivalent Tl atoms to form a mixture of distorted face, edge, and corner-sharing BrCs4Tl2 octahedra. The corner-sharing octahedra tilt angles range from 1–62°. In the second Br site, Br is bonded to four equivalent Cs and two equivalent Tl atoms to form a mixture of distorted face, edge, and corner-sharing BrCs4Tl2 octahedra. The corner-sharing octahedra tilt angles range from 2–62°. In the third Br site, Br is bonded to four equivalent Cs and two equivalent Tl atoms to form a mixture of distorted face, edge, and corner-sharing BrCs4Tl2 octahedra. The corner-sharing octahedra tilt angles range from 1–61°.

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Materials Data on Cs9Fe2Se7 by Materials Project

Cs9Fe2Se7 crystallizes in the cubic P2_13 space group. The structure is three-dimensional. there are five inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded to five Se2- atoms to form distorted CsSe5 square pyramids that share a cornercorner with one CsSe6 octahedra, corners with six equivalent CsSe5 square pyramids, a cornercorner with one FeSe4 tetrahedra, an edgeedge with one FeSe4 tetrahedra, and a faceface with one CsSe6 octahedra. The corner-sharing octahedral tilt angles are 43°. There are a spread of Cs–Se bond distances ranging from 3.42–3.67 Å. In the second Cs1+ site, Cs1+ is bonded in a 6-coordinate geometry to six Se2- atoms. There are three shorter (3.73 Å) and three longer (3.81 Å) Cs–Se bond lengths. In the third Cs1+ site, Cs1+ is bonded in a 5-coordinate geometry to five Se2- atoms. There are a spread of Cs–Se bond distances ranging from 3.80–3.92 Å. In the fourth Cs1+ site, Cs1+ is bonded in a distorted T-shaped geometry to three equivalent Se2- atoms. All Cs–Se bond lengths are 3.67 Å. In the fifth Cs1+ site, Cs1+ is bonded to six Se2- atoms to form distorted CsSe6 octahedra that share corners with three equivalent CsSe5 square pyramids, corners with three equivalent FeSe4 tetrahedra, and faces with three equivalent CsSe5 square pyramids. There are three shorter (3.72 Å) and three longer (3.98 Å) Cs–Se bond lengths. There are two inequivalent Fe+2.50+ sites. In the first Fe+2.50+ site, Fe+2.50+ is bonded in a trigonal planar geometry to three equivalent Se2- atoms. All Fe–Se bond lengths are 2.38 Å. In the second Fe+2.50+ site, Fe+2.50+ is bonded to four Se2- atoms to form FeSe4 tetrahedra that share corners with three equivalent CsSe6 octahedra, corners with three equivalent CsSe5 square pyramids, and edges with three equivalent CsSe5 square pyramids. The corner-sharing octahedral tilt angles are 43°. There are three shorter (2.46 Å) and one longer (2.51 Å) Fe–Se bond lengths. There are three inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 1-coordinate geometry to six Cs1+ and one Fe+2.50+ atom. In the second Se2- site, Se2- is bonded in a 1-coordinate geometry to seven Cs1+ and one Fe+2.50+ atom. In the third Se2- site, Se2- is bonded in a 1-coordinate geometry to six Cs1+ and one Fe+2.50+ atom.

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Materials Data on CsAc3 by Materials Project

CsAc3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Cs is bonded to twelve Ac atoms to form CsAc12 cuboctahedra that share corners with six equivalent CsAc12 cuboctahedra, corners with twelve AcCs4Ac8 cuboctahedra, edges with eighteen AcCs4Ac8 cuboctahedra, faces with eight equivalent CsAc12 cuboctahedra, and faces with twelve AcCs4Ac8 cuboctahedra. There are six shorter (4.15 Å) and six longer (4.22 Å) Cs–Ac bond lengths. There are three inequivalent Ac sites. In the first Ac site, Ac is bonded to four equivalent Cs and eight Ac atoms to form distorted AcCs4Ac8 cuboctahedra that share corners with four equivalent CsAc12 cuboctahedra, corners with fourteen equivalent AcCs4Ac8 cuboctahedra, edges with six equivalent CsAc12 cuboctahedra, edges with twelve AcCs4Ac8 cuboctahedra, faces with four equivalent CsAc12 cuboctahedra, and faces with sixteen AcCs4Ac8 cuboctahedra. There are a spread of Ac–Ac bond distances ranging from 4.02–4.40 Å. In the second Ac site, Ac is bonded to four equivalent Cs and eight Ac atoms to form distorted AcCs4Ac8 cuboctahedra that share corners with four equivalent CsAc12 cuboctahedra, corners with fourteen AcCs4Ac8 cuboctahedra, edges with six equivalent CsAc12 cuboctahedra, edges with twelve AcCs4Ac8 cuboctahedra, faces with four equivalent CsAc12 cuboctahedra, and faces with sixteen AcCs4Ac8 cuboctahedra. There are a spread of Ac–Ac bond distances ranging from 4.02–4.40 Å. In the third Ac site, Ac is bonded to four equivalent Cs and eight Ac atoms to form distorted AcCs4Ac8 cuboctahedra that share corners with four equivalent CsAc12 cuboctahedra, corners with fourteen AcCs4Ac8 cuboctahedra, edges with six equivalent CsAc12 cuboctahedra, edges with twelve AcCs4Ac8 cuboctahedra, faces with four equivalent CsAc12 cuboctahedra, and faces with sixteen AcCs4Ac8 cuboctahedra.

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DOE OSTI2020

Materials Data on Cs3Ag(AsSe2)4 by Materials Project

Cs3Ag(AsSe2)4 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are four inequivalent Cs1+ sites. In the first Cs1+ site, Cs1+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Cs–Se bond distances ranging from 3.89–4.12 Å. In the second Cs1+ site, Cs1+ is bonded in a 8-coordinate geometry to one Ag1+ and seven Se2- atoms. The Cs–Ag bond length is 3.81 Å. There are a spread of Cs–Se bond distances ranging from 3.67–4.24 Å. In the third Cs1+ site, Cs1+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Cs–Se bond distances ranging from 3.69–4.34 Å. In the fourth Cs1+ site, Cs1+ is bonded in a 6-coordinate geometry to six Se2- atoms. There are a spread of Cs–Se bond distances ranging from 3.70–4.12 Å. Ag1+ is bonded in a distorted trigonal planar geometry to one Cs1+ and three Se2- atoms. There are a spread of Ag–Se bond distances ranging from 2.62–2.71 Å. There are four inequivalent As3+ sites. In the first As3+ site, As3+ is bonded in a trigonal non-coplanar geometry to three Se2- atoms. There are a spread of As–Se bond distances ranging from 2.40–2.47 Å. In the second As3+ site, As3+ is bonded in a trigonal non-coplanar geometry to three Se2- atoms. There are a spread of As–Se bond distances ranging from 2.38–2.49 Å. In the third As3+ site, As3+ is bonded in a distorted trigonal non-coplanar geometry to three Se2- atoms. There are a spread of As–Se bond distances ranging from 2.37–2.51 Å. In the fourth As3+ site, As3+ is bonded in a trigonal non-coplanar geometry to three Se2- atoms. There are a spread of As–Se bond distances ranging from 2.34–2.50 Å. There are eight inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 2-coordinate geometry to one Cs1+ and two As3+ atoms. In the second Se2- site, Se2- is bonded in a 2-coordinate geometry to four Cs1+, one Ag1+, and one As3+ atom. In the third Se2- site, Se2- is bonded in a 2-coordinate geometry to two equivalent Cs1+ and two As3+ atoms. In the fourth Se2- site, Se2- is bonded in a 2-coordinate geometry to three Cs1+, one Ag1+, and one As3+ atom. In the fifth Se2- site, Se2- is bonded in a distorted water-like geometry to three Cs1+ and two As3+ atoms. In the sixth Se2- site, Se2- is bonded in a 4-coordinate geometry to three Cs1+, one Ag1+, and one As3+ atom. In the seventh Se2- site, Se2- is bonded in a distorted water-like geometry to two equivalent Cs1+ and two As3+ atoms. In the eighth Se2- site, Se2- is bonded in a 1-coordinate geometry to four Cs1+ and one As3+ atom.

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