Materials Data on PbIBr by Materials Project
PbIBr crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Pb2+ is bonded in a 8-coordinate geometry to four equivalent I1- and four equivalent Br1- atoms. There are two shorter (3.21 Å) and two longer (3.87 Å) Pb–I bond lengths. There are a spread of Pb–Br bond distances ranging from 2.97–3.66 Å. I1- is bonded in a 2-coordinate geometry to four equivalent Pb2+ atoms. Br1- is bonded in a 3-coordinate geometry to four equivalent Pb2+ atoms.