Materials Data on CuBiPbS3 by Materials Project
PbCuBiS3 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Cu1+ is bonded to four S2- atoms to form corner-sharing CuS4 tetrahedra. There are a spread of Cu–S bond distances ranging from 2.32–2.42 Å. Pb2+ is bonded in a 7-coordinate geometry to seven S2- atoms. There are a spread of Pb–S bond distances ranging from 2.96–3.31 Å. Bi3+ is bonded in a 6-coordinate geometry to six S2- atoms. There are a spread of Bi–S bond distances ranging from 2.69–3.17 Å. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in a 1-coordinate geometry to one Cu1+, two equivalent Pb2+, and three equivalent Bi3+ atoms. In the second S2- site, S2- is bonded in a 5-coordinate geometry to two equivalent Cu1+, two equivalent Pb2+, and one Bi3+ atom. In the third S2- site, S2- is bonded in a 6-coordinate geometry to one Cu1+, three equivalent Pb2+, and two equivalent Bi3+ atoms.