Materials Data on K2Cu3S3O13 by Materials Project
K2Cu3S3O13 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of K–O bond distances ranging from 2.76–3.22 Å. In the second K1+ site, K1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of K–O bond distances ranging from 2.59–3.18 Å. There are three inequivalent Cu2+ sites. In the first Cu2+ site, Cu2+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Cu–O bond distances ranging from 1.95–2.00 Å. In the second Cu2+ site, Cu2+ is bonded to five O2- atoms to form distorted CuO5 trigonal bipyramids that share corners with four SO4 tetrahedra and a cornercorner with one CuO5 trigonal bipyramid. There are a spread of Cu–O bond distances ranging from 1.96–2.46 Å. In the third Cu2+ site, Cu2+ is bonded to five O2- atoms to form CuO5 trigonal bipyramids that share corners with four SO4 tetrahedra and a cornercorner with one CuO5 trigonal bipyramid. There are a spread of Cu–O bond distances ranging from 1.97–2.28 Å. There are three inequivalent S6+ sites. In the first S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with two equivalent CuO5 trigonal bipyramids. There are a spread of S–O bond distances ranging from 1.46–1.51 Å. In the second S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with four CuO5 trigonal bipyramids. There are a spread of S–O bond distances ranging from 1.48–1.51 Å. In the third S6+ site, S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with two equivalent CuO5 trigonal bipyramids. There are a spread of S–O bond distances ranging from 1.46–1.51 Å. There are fourteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one K1+, one Cu2+, and one S6+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one K1+, one Cu2+, and one S6+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one K1+, one Cu2+, and one S6+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent K1+ and one S6+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to one K1+, one Cu2+, and one S6+ atom. In the sixth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one K1+, one Cu2+, and one S6+ atom. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to one K1+, one Cu2+, and one S6+ atom. In the eighth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one K1+, one Cu2+, and one S6+ atom. In the ninth O2- site, O2- is bonded in a distorted single-bond geometry to one K1+, one Cu2+, and one S6+ atom. In the tenth O2- site, O2- is bonded in a 3-coordinate geometry to one K1+, one Cu2+, and one S6+ atom. In the eleventh O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one K1+, one Cu2+, and one S6+ atom. In the twelfth O2- site, O2- is bonded in a distorted single-bond geometry to two K1+ and one S6+ atom. In the thirteenth O2- site, O2- is bonded to four Cu2+ atoms to form distorted edge-sharing OCu4 tetrahedra. In the fourteenth O2- site, O2- is bonded to four Cu2+ atoms to form distorted edge-sharing OCu4 tetrahedra.