Materials Data on Te3Pt2 by Materials Project
Pt2Te3 crystallizes in the trigonal R-3m space group. The structure is two-dimensional and consists of six PtTe sheets oriented in the (0, 0, 1) direction and six PtTe2 sheets oriented in the (0, 0, 1) direction. In each PtTe sheet, Pt3+ is bonded in a distorted trigonal non-coplanar geometry to three equivalent Te2- atoms. All Pt–Te bond lengths are 2.64 Å. Te2- is bonded in a distorted trigonal non-coplanar geometry to three equivalent Pt3+ atoms. In each PtTe2 sheet, Pt3+ is bonded to six Te2- atoms to form edge-sharing PtTe6 octahedra. There are three shorter (2.71 Å) and three longer (2.72 Å) Pt–Te bond lengths. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 3-coordinate geometry to three equivalent Pt3+ atoms. In the second Te2- site, Te2- is bonded in a 3-coordinate geometry to three equivalent Pt3+ atoms.