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Pr3Sn is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Pr is bonded in a distorted square co-planar geometry to four equivalent Sn atoms. All Pr–Sn bond lengths are 3.54 Å. Sn is bonded to twelve equivalent Pr atoms to form a mixture of face and corner-sharing SnPr12 cuboctahedra.
Pr3SnC is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional and consists of one medicinal charcoal molecule and one Pr3Sn framework. In the Pr3Sn framework, Pr is bonded in a linear geometry to two equivalent Sn atoms. Both Pr–Sn bond lengths are 2.93 Å. Sn is bonded to six equivalent Pr atoms to form corner-sharing SnPr6 octahedra. The corner-sharing octahedral tilt angles are 0°.