Molecular and crystal structure of potassium bisacetylacetonatochloroplatinate(II)

Abstract

Potassium bisacetylacetonatochloroplatinate(II), K[Pt acac₂Cl], crystallises in the space group Cl2/c with a= 25·97, b= 13·73, and c= 7·81 Å, β= 92·0°. Positional and anisotropic thermal parameters of the eighteen crystallographically independent atoms have been determined from a least-squares analysis of 1845 reflexions (Mo-K_α); the final R is 0·061 and corresponds to average estimated standard deviations in the bond-lengths of 0·005 (Pt–Cl), 0·015 (Pt–C) and 0·03 Å(C–C and C–O). Only one acetylacetonate ligand is bonded to the platinum ion via its oxygen atoms [(Pt–O) 2·02 Å] the other being unidentate through its γ-carbon atom (Pt–C2·11 Å). The structure is discussed in relation to other acetylacetonate- and alkyl-complexes of platinum.