Abstract

Hamad A. Ai-Lohedan, Ibrahim M. Al-Najjar and Zuheir A.Issa

31p NMR spectroscopy provides strong evidence for inversion of configuration when cis-[PtCI2 (PBu3) (PhCN)] (1) reacted with amine to give trans-[PtCI2 (PBu3) (amine)] Tht use of 15N-amines has enable us to look at*2J(31P-15N) in both cis and trans isomers of [PtCI2 (PBu3)(15NHMe2)l complexes. Reaction of cis-[PtCI2(PBu3) (amine)] with different amines have been examined and provides cis-[PtCI2(PBu3) (amine)] complex with retention of configuration. Ligand-ligand exchanged in complex (1) takes place at different temperatures, but in complex (2) amine-amine exchanged takes place at a higher temperature (above 0°C). Rate constants in CHCl3, and benzene solutions of the complex (1) of various amines have been determined and discussed in terms of basicity and steric hindrance of entering amine ligand.

Different; Complexes; Amines

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