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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Sr(BS2)2 by Materials Project

Sr(BS2)2 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 6-coordinate geometry to nine S2- atoms. There are a spread of Sr–S bond distances ranging from 3.16–3.62 Å. In the second Sr2+ site, Sr2+ is bonded in an octahedral geometry to six equivalent S2- atoms. All Sr–S bond lengths are 3.07 Å. B3+ is bonded in a trigonal planar geometry to three S2- atoms. There is one shorter (1.80 Å) and two longer (1.82 Å) B–S bond length. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 1-coordinate geometry to three Sr2+ and one B3+ atom. In the second S2- site, S2- is bonded in a bent 120 degrees geometry to one Sr2+ and two equivalent B3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr3(BS3)2 by Materials Project

Sr3(BS3)2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a distorted body-centered cubic geometry to eight S2- atoms. There are a spread of Sr–S bond distances ranging from 3.04–3.21 Å. In the second Sr2+ site, Sr2+ is bonded in a distorted body-centered cubic geometry to eight S2- atoms. There are a spread of Sr–S bond distances ranging from 3.11–3.22 Å. B3+ is bonded in a trigonal planar geometry to three S2- atoms. There are a spread of B–S bond distances ranging from 1.82–1.84 Å. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted single-bond geometry to four Sr2+ and one B3+ atom. In the second S2- site, S2- is bonded in a 1-coordinate geometry to four Sr2+ and one B3+ atom. In the third S2- site, S2- is bonded in a 1-coordinate geometry to four Sr2+ and one B3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sr(BS2)2 by Materials Project

Sr(BS2)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Sr2+ is bonded in a 9-coordinate geometry to nine S2- atoms. There are a spread of Sr–S bond distances ranging from 2.99–3.56 Å. There are two inequivalent B3+ sites. In the first B3+ site, B3+ is bonded to four S2- atoms to form a mixture of edge and corner-sharing BS4 tetrahedra. There are a spread of B–S bond distances ranging from 1.89–1.97 Å. In the second B3+ site, B3+ is bonded to four S2- atoms to form corner-sharing BS4 tetrahedra. There are a spread of B–S bond distances ranging from 1.92–1.95 Å. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 2-coordinate geometry to three equivalent Sr2+ and two equivalent B3+ atoms. In the second S2- site, S2- is bonded in a 2-coordinate geometry to two equivalent Sr2+ and two equivalent B3+ atoms. In the third S2- site, S2- is bonded in a 2-coordinate geometry to two equivalent Sr2+ and two B3+ atoms. In the fourth S2- site, S2- is bonded in a 2-coordinate geometry to two equivalent Sr2+ and two B3+ atoms.

36 MATERIALS SCIENCE↗