Home – Home – Jornals – Journal of Structural Chemistry 2011 number 3

The structures of volatile pyridine adducts of trimethylplatinum(IV) β-diketonates derived from acetylacetone (Hacac) and dipivaloylmethane (Hdpm) are studied for the first time. Their preparation is reported and the data of thermal studies obtained by the DTA technique are presented. The structures of the compounds in question comprise monomeric complexes. The platinum atom is coordinated to three carbon atoms of methyl groups, two oxygen atoms of β-diketone, and the nitrogen atom of the pyridine molecule. The (PtC₃O₂N) coordination core has the shape of a slightly distorted octahedron. The geometrical characteristics of the coordination cores are the following: in all complexes, the values of Pt-O, Pt-C_Me,
Pt-N bond lengths and O-Pt-O chelate angles fall within 2.122-2.146 Å, 1.986-2.079 Å, 2.131-2.186 Å and 89.3-90.6° respectively.