名称:
The First Metal Complexes Derived from 3,5-Diethynylpyridine. X-ray Crystal Structure of [(AuPTo3)2{μ-(C⋮C)2Py}] (Py = Pyridine-3,5-diyl; To = p-Tolyl)
摘要:
The reactions of 3,5-diethynylpyridine (Py(CdropCH)(2)) with PPN[Au(acac)(2)] (2.5:1; PPN Ph3P=N=PPh3) or with [AuCl(SMe2)] and NEt3 (1:2:2) give respectively PPN[Au{CdropC(Py)-CdropCH}(2)] (1) and [Au-2{mu-(CdropC)(2)Py}](n) (2). Complex 2 reacts with monodentate ligands (1:2) or with 1,6-bis(diphenylphosphino)hexane (dpph, 1:1) to give neutral dinuclear complexes of the general formula [(AuL)(2){mu-(CdropC)(2)Py}] (L = (CNBu)-Bu-t (3), PMe3 (4), PPh3 (5), PTo(3) (To = C6H4Me-4) (6); Au2L2 = Au-2(mu-dpph) (7)). The reactions of 6 with the complexes [MCl] and TlTfO (1:1:1) (TfO = CF3SO3) give the cationic trinuclear complexes [M{Py(CdropCAuPTo(3))(2)}]TfO (M = AuPTo(3) (8), cis-PtCl(PPh3)(2) (9)). The crystal structure of complex 6 has been determined.