Structure and thermal properties of trimethylplatinum(IV)-pivaloyltrifluoroacetonate pyridine

Abstract

The structure of (CH₃)₃Pt(ptac)Py (ptac = (CH₃)₃C(O)CHC(O)CF₃) is determined by single crystal X-ray diffraction (XRD) at a temperature of 150 K. The crystallographic data are as follows: space group P2₁/c, a = 8.5513(2) Å, b = 16.1089(3) Å, c = 14.0877(3) Å, β = 107.4060(10)°, V = 1851.75(7) ų, Z = 4, R = 0.0365. The structure is molecular; the coordination polyhedron of platinum is a distorted octahedron. The average Pt–O and Pt–CMe distances are 2.149(1) Å and 2.029(5) Å, respectively; the Pt–N distance is 2.179(2) Å, the chelate angle O–Pt–O = 89.77(8)°. The thermal properties of (CH₃)₃Pt(ptac)Py in the condensed phase are examined by thermogravimetry.