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PtSn crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Pt2- is bonded in a 6-coordinate geometry to two equivalent Pt2- and six equivalent Sn2+ atoms. Both Pt–Pt bond lengths are 2.76 Å. All Pt–Sn bond lengths are 2.78 Å. Sn2+ is bonded in a 6-coordinate geometry to six equivalent Pt2- atoms.
CePt2Sn2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Ce is bonded in a 12-coordinate geometry to eight Pt and eight Sn atoms. There are a spread of Ce–Pt bond distances ranging from 3.47–3.52 Å. There are a spread of Ce–Sn bond distances ranging from 3.46–3.59 Å. There are two inequivalent Pt sites. In the first Pt site, Pt is bonded in a 4-coordinate geometry to four equivalent Ce and four equivalent Sn atoms. All Pt–Sn bond lengths are 2.68 Å. In the second Pt site, Pt is bonded in a 9-coordinate geometry to four equivalent Ce and five Sn atoms. There are one shorter (2.59 Å) and four longer (2.69 Å) Pt–Sn bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 9-coordinate geometry to four equivalent Ce and five Pt atoms. In the second Sn site, Sn is bonded to four equivalent Ce and four equivalent Pt atoms to form a mixture of distorted face and edge-sharing SnCe4Pt4 tetrahedra.
PtSn(N2Cl3)2 crystallizes in the orthorhombic Cmce space group. The structure is one-dimensional and consists of four PtSn(N2Cl3)2 ribbons oriented in the (1, 0, 0) direction. Pt6+ is bonded in a square co-planar geometry to four equivalent N1- atoms. All Pt–N bond lengths are 1.95 Å. Sn4+ is bonded in an octahedral geometry to six Cl1- atoms. There are two shorter (2.46 Å) and four longer (2.80 Å) Sn–Cl bond lengths. N1- is bonded in a bent 120 degrees geometry to one Pt6+ and one Cl1- atom. The N–Cl bond length is 1.69 Å. There are two inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Sn4+ atom. In the second Cl1- site, Cl1- is bonded in a bent 120 degrees geometry to one Sn4+ and one N1- atom.