Materials Data on KPb2C2O6F by Materials Project
KPb2C2O6F crystallizes in the hexagonal P6_3/mmc space group. The structure is two-dimensional and consists of two KPb2C2O6F sheets oriented in the (0, 0, 1) direction. K1+ is bonded in a 9-coordinate geometry to six equivalent O2- and three equivalent F1- atoms. All K–O bond lengths are 2.71 Å. All K–F bond lengths are 3.10 Å. Pb2+ is bonded in a 1-coordinate geometry to one F1- atom. The Pb–F bond length is 2.36 Å. C4+ is bonded in a trigonal planar geometry to three equivalent O2- atoms. All C–O bond lengths are 1.30 Å. O2- is bonded in a distorted single-bond geometry to one K1+ and one C4+ atom. F1- is bonded to three equivalent K1+ and two equivalent Pb2+ atoms to form corner-sharing FK3Pb2 trigonal bipyramids.
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