Volatile fluorinated trimethylplatinum(IV) β-diketonates: Synthesis, properties, and structure

Abstract

Stable volatile fluorinated trimethylplatinum(IV) β-diketonates: [(CH3)3Pt(CF3–CO–CH–CO–CF3)H2O], (CH3)3Pt(hfac)H2O (1); [(CH3)3Pt(CF3–CO–CH–CO–CH3)H2O], (CH3)3Pt(tfac)H2O (2); [(CH3)3Pt(CF3–CO–CH–CO–C(CH3)3H2O], (CH3)3Pt(ptac)H2O (3) were synthesized with the yield of 92–95%. The obtained compounds were identified by elemental analysis, 1H and 13C NMR, IR-spectroscopy. Crystal structure and thermal properties were studied. In compounds 1, 2, and 3, the coordination Pt polyhedron is a slightly distorted PtC3O3 octahedron formed by three methyl groups, water molecule, and two oxygen atoms of the bidentate ligand. The Pt–CMe, Pt–OL, and Pt–OW bond lengths and the chelate O–Pt–O angle values are within 1.86–2.16, 2.04–2.27, and 2.23–2.30Å and 87.8–88.9°, respectively, in all complexes. The complexes are not sensitive to oxygen and moisture and stable for a long time upon storage.