Materials Data on PbCl2 by Materials Project
PbCl2 is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Pb2+ is bonded in a 7-coordinate geometry to seven Cl1- atoms. There are a spread of Pb–Cl bond distances ranging from 2.83–3.20 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded to four equivalent Pb2+ atoms to form a mixture of distorted corner and edge-sharing ClPb4 tetrahedra. In the second Cl1- site, Cl1- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Pb2+ atoms.