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Carbon-carbon coupling in dinuclear cycloaurated complexes containing bridging 2-(diphenylphosphino)phenyl or 2-(diethylphosphino)phenyl. Role of the axial ligand and the fine balance between gold(II)-gold(II) and gold(I)-gold(III).

Bennett, Martin; Hockless, David; Rae, A David; Welling, Lee; Willis, Anthony


Reactions of the homovalent bis(benzoato)digqld(II) complexes [Aun2(O2CPh)2(//-2-C6H4PR2)2] (R = Ph (la), Et (lb)) with the anions CH3-, C6F5~, and SON'- have been investigated. Dimethylmagnesium gives the stable heterovalent complexes [AuI(H-2-C6H4PR2)2AuIII(CH3)2]. (R = Ph (2a), Et (2b)), whereas (pentafluorophenyl)lithium gives the homovalent complexes " [Aun2(C6F5)2(-2-C6H4PR2)2] (R - Ph (3a), Et (3b)). On prolonged heating in toluene, the , , latter rearrange to give predominantly...[Show more]

CollectionsANU Research Publications
Date published: 2001
Type: Journal article
Source: Organometallics


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