Exploring the reactivity of an N-pyrazole, P-phosphine hybrid ligand with Cu(I), Ag(I) and Au(I) precursors

The reactivity of (3,5-dimethyl-1H-pyrazol-1-yl)ethyldiphenylphosphine (L) hybrid ligand against Cu(I), Ag(I) and Au(I) has been assayed and compounds [Cu(L)2](PF6) (1), [Ag(L)]2(PF6)2·2C2H4Cl2·2C4H10O (2) and [AuCl(L)]2 (3) have been isolated and fully characterised. A fully characterisation by analytical and spectroscopic methods of 1–3 are presented and X-ray crystal structures of 1 and 2 are also reported. The similar data obtained between 2 and 3 permits to do a serious purpose of the structure of 3 in solid and solution.