N- or P-coordination in Di- and triazaphosphole gold complexes

Kailash C. Dash, Hubert Schmidbaur, Alfred Schmidpeter

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30 Scopus citations


AuCl and (CH3)2AuCl complexes of the following series of azaphospholes have been prepared and characterized by analytical and spectroscopic data: 2,5-dimethyl-1,2,3-diazaphosphole (1), 5-methyl-2-phenyl-1,2,3-diazaphosphole (2), 2-methyl-5-phenyl-1,2,4,3-triazaphosphole (3), and 1,5-dimethyl-1,2,4,3-triazaphosphole (4). The (CH3)2AuCl complexes are assigned a planar cis-structure with P-coordination for 2 and 3, but N-coordination for 1 and 4. Imidazole forms a 1:1 complex with (CH3)2AuCl (9), but a 2:1 complex with AuCl (10). Low solubilities of the 1:1 complexes of AuCl with the azaphospholes preclude detailed structure analyses in solution. The complexes are of interest for pharmacological studies.

Original languageEnglish
Pages (from-to)167-170
Number of pages4
JournalInorganica Chimica Acta
Issue numberC
StatePublished - 1980
Externally publishedYes


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