Materials Data on Tb4(SiS4)3 by Materials Project
Tb4(SiS4)3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are four inequivalent Tb3+ sites. In the first Tb3+ site, Tb3+ is bonded in a 6-coordinate geometry to six S2- atoms. There are a spread of Tb–S bond distances ranging from 2.73–2.85 Å. In the second Tb3+ site, Tb3+ is bonded in a 7-coordinate geometry to seven S2- atoms. There are a spread of Tb–S bond distances ranging from 2.78–2.97 Å. In the third Tb3+ site, Tb3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Tb–S bond distances ranging from 2.84–3.01 Å. In the fourth Tb3+ site, Tb3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Tb–S bond distances ranging from 2.80–3.17 Å. There are three inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded in a tetrahedral geometry to four S2- atoms. There are a spread of Si–S bond distances ranging from 2.11–2.16 Å. 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 2.09–2.15 Å. In the third Si4+ site, Si4+ is bonded in a tetrahedral geometry to four S2- atoms. There are a spread of Si–S bond distances ranging from 2.10–2.15 Å. There are twelve inequivalent S2- sites. In the first S2- site, S2- is bonded in a 3-coordinate geometry to two equivalent Tb3+ and one Si4+ atom. In the second S2- site, S2- is bonded in a 3-coordinate geometry to two Tb3+ and one Si4+ atom. In the third S2- site, S2- is bonded in a distorted T-shaped geometry to two Tb3+ and one Si4+ atom. In the fourth S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three Tb3+ and one Si4+ atom. In the fifth S2- site, S2- is bonded in a 3-coordinate geometry to two Tb3+ and one Si4+ atom. In the sixth S2- site, S2- is bonded in a 3-coordinate geometry to two Tb3+ and one Si4+ atom. In the seventh S2- site, S2- is bonded in a 4-coordinate geometry to two Tb3+ and one Si4+ atom. In the eighth S2- site, S2- is bonded in a distorted trigonal pyramidal geometry to three Tb3+ and one Si4+ atom. In the ninth S2- site, S2- is bonded in a distorted rectangular see-saw-like geometry to three Tb3+ and one Si4+ atom. In the tenth S2- site, S2- is bonded in a 3-coordinate geometry to two Tb3+ and one Si4+ atom. In the eleventh S2- site, S2- is bonded in a 4-coordinate geometry to three Tb3+ and one Si4+ atom. In the twelfth S2- site, S2- is bonded in a 4-coordinate geometry to three Tb3+ and one Si4+ atom.