Materials Data on PbIF by Materials Project
PbFI is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. The structure is two-dimensional and consists of one PbFI sheet oriented in the (0, 0, 1) direction. Pb2+ is bonded in a 4-coordinate geometry to four equivalent I1- and four equivalent F1- atoms. All Pb–I bond lengths are 3.40 Å. All Pb–F bond lengths are 2.59 Å. I1- is bonded in a 4-coordinate geometry to four equivalent Pb2+ atoms. F1- is bonded to four equivalent Pb2+ atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra.
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