Materials Data on Rb4Re6S13 by Materials Project
Rb4Re6S13 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Rb–S bond distances ranging from 3.22–3.87 Å. In the second Rb1+ site, Rb1+ is bonded in a 7-coordinate geometry to seven S2- atoms. There are a spread of Rb–S bond distances ranging from 3.24–3.75 Å. There are three inequivalent Re+3.67+ sites. In the first Re+3.67+ site, Re+3.67+ is bonded to five S2- atoms to form edge-sharing ReS5 square pyramids. There are a spread of Re–S bond distances ranging from 2.41–2.51 Å. In the second Re+3.67+ site, Re+3.67+ is bonded to five S2- atoms to form a mixture of edge and corner-sharing ReS5 square pyramids. There are a spread of Re–S bond distances ranging from 2.42–2.50 Å. In the third Re+3.67+ site, Re+3.67+ is bonded to five S2- atoms to form ReS5 square pyramids that share a cornercorner with one SRb2ReS tetrahedra and edges with four ReS5 square pyramids. There are a spread of Re–S bond distances ranging from 2.41–2.45 Å. There are seven inequivalent S2- sites. In the first S2- site, S2- is bonded in a 2-coordinate geometry to four Rb1+ and two equivalent Re+3.67+ atoms. In the second S2- site, S2- is bonded in a 4-coordinate geometry to two Rb1+ and three Re+3.67+ atoms. In the third S2- site, S2- is bonded in a 5-coordinate geometry to three Rb1+ and three Re+3.67+ atoms. In the fourth S2- site, S2- is bonded in a 5-coordinate geometry to two equivalent Rb1+ and three Re+3.67+ atoms. In the fifth S2- site, S2- is bonded in a 4-coordinate geometry to one Rb1+ and three Re+3.67+ atoms. In the sixth S2- site, S2- is bonded to two Rb1+, one Re+3.67+, and one S2- atom to form distorted SRb2ReS tetrahedra that share a cornercorner with one ReS5 square pyramid. The S–S bond length is 2.11 Å. In the seventh S2- site, S2- is bonded in a 1-coordinate geometry to three Rb1+, one Re+3.67+, and one S2- atom. The S–S bond length is 2.14 Å.