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Ce3Pb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ce is bonded in a distorted square co-planar geometry to four equivalent Pb atoms. All Ce–Pb bond lengths are 3.43 Å. Pb is bonded to twelve equivalent Ce atoms to form a mixture of face and corner-sharing PbCe12 cuboctahedra.
Ce3PbC is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional and consists of one methane molecule and one Ce3Pb framework. In the Ce3Pb framework, Ce is bonded in a linear geometry to two equivalent Pb atoms. Both Ce–Pb bond lengths are 2.99 Å. Pb is bonded to six equivalent Ce atoms to form corner-sharing PbCe6 octahedra. The corner-sharing octahedral tilt angles are 0°.