Materials Data on Na3CuCSO7 by Materials Project
Na3CuCSO7 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Na–O bond distances ranging from 2.30–2.71 Å. In the second Na1+ site, Na1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Na–O bond distances ranging from 2.37–2.89 Å. Cu1+ is bonded to six O2- atoms to form distorted CuO6 octahedra that share corners with four equivalent SO4 tetrahedra. There are a spread of Cu–O bond distances ranging from 2.11–2.41 Å. C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.30 Å) and one longer (1.31 Å) C–O bond length. S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with four equivalent CuO6 octahedra. The corner-sharing octahedra tilt angles range from 46–60°. There are a spread of S–O bond distances ranging from 1.49–1.51 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to four Na1+ and one C4+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one Cu1+, and one C4+ atom. In the third O2- site, O2- is bonded to three Na1+, one Cu1+, and one C4+ atom to form distorted corner-sharing ONa3CuC trigonal bipyramids. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to three Na1+, one Cu1+, and one S6+ atom. In the fifth O2- site, O2- is bonded to two equivalent Na1+, one Cu1+, and one S6+ atom to form distorted corner-sharing ONa2CuS tetrahedra. In the sixth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to two equivalent Na1+, one Cu1+, and one S6+ atom.