Copper(I) and Gold(I) Complexes with N,N′-Bis(diphenylphosphino)-2,6-diaminopyridine as Ligand: Synthesis and Molecular Structures

• Published in: Zeitschrift für anorganische und allgemeine Chemie (1950) Vol. 632; no. 5; pp. 744 - 748
• Main Authors: Pan, Zhida, Gamer, Michael T., Roesky, Peter W.
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 01.04.2006; WILEY‐VCH Verlag
• Subjects: Copper; Gold; N,P Ligand; P Ligand; Phosphinoamine
• ISSN: 0044-2313; 1521-3749
• DOI: 10.1002/zaac.200500335

Reaction of CuI with 1 or 2 equivalent(s) N,N′‐Bis(diphenylphosphino)‐2,6‐diaminopyridine (BDDP) gives two different complexes, [Cu(I)μ‐(BDDP‐κP,Npy)]2 (1) and [Cu(BDDP‐κP,Npy)2]I (2), in high yields. The determination of the molecular structure show that both CuI atoms are tetrahedrally coordinated, rather than a square‐planar geometry reported for Cr0, NiII‐BDDP complexes before, which contains a planar tridentate chelate ring system. The introduction of AuCl(tht) (tht = tetrahydrothiophene) into [Cu(BDDP‐κP,Npy)2]I leads unexpectedly to the formation of a digold complex 2,6‐[(ClAuPh2P)HN]2C5H3N and dimeric [Cu(I)μ‐(BDDP‐κP,Npy)]2.