Materials Data on Y6Cr(SiS7)2 by Materials Project

Y6Cr(SiS7)2 crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are six inequivalent Y3+ sites. In the first Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Y–S bond distances ranging from 2.74–3.11 Å. In the second Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Y–S bond distances ranging from 2.74–3.12 Å. In the third Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Y–S bond distances ranging from 2.74–3.11 Å. In the fourth Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Y–S bond distances ranging from 2.74–2.98 Å. In the fifth Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Y–S bond distances ranging from 2.74–2.98 Å. In the sixth Y3+ site, Y3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Y–S bond distances ranging from 2.74–2.98 Å. Cr2+ is bonded in an octahedral geometry to six S2- atoms. There are a spread of Cr–S bond distances ranging from 2.50–2.53 Å. There are two inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded in a tetrahedral geometry to four S2- atoms. There are one shorter (2.10 Å) and three longer (2.14 Å) Si–S bond lengths. In the second Si4+ site, Si4+ is bonded in a tetrahedral geometry to four S2- atoms. There are a spread of Si–S bond distances ranging from 2.10–2.14 Å. There are fourteen inequivalent S2- sites. In the first S2- site, S2- is bonded in a distorted tetrahedral geometry to three Y3+ and one Si4+ atom. In the second S2- site, S2- is bonded in a distorted tetrahedral geometry to three Y3+ and one Si4+ atom. In the third S2- site, S2- is bonded in a 5-coordinate geometry to four Y3+ and one Cr2+ atom. In the fourth S2- site, S2- is bonded in a 5-coordinate geometry to four Y3+ and one Cr2+ atom. In the fifth S2- site, S2- is bonded in a 5-coordinate geometry to four Y3+ and one Cr2+ atom. In the sixth S2- site, S2- is bonded in a 5-coordinate geometry to four Y3+ and one Cr2+ atom. In the seventh S2- site, S2- is bonded in a 5-coordinate geometry to four Y3+ and one Cr2+ atom. In the eighth S2- site, S2- is bonded in a 5-coordinate geometry to four Y3+ and one Cr2+ atom. In the ninth S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three Y3+ and one Si4+ atom. In the tenth S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three Y3+ and one Si4+ atom. In the eleventh S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three Y3+ and one Si4+ atom. In the twelfth S2- site, S2- is bonded in a 4-coordinate geometry to three Y3+ and one Si4+ atom. In the thirteenth S2- site, S2- is bonded in a 4-coordinate geometry to three Y3+ and one Si4+ atom. In the fourteenth S2- site, S2- is bonded in a 4-coordinate geometry to three Y3+ and one Si4+ atom.