名称:
Synthesis and characterization of RuII/AuI, PdII/AuI, PdII/2AuI, PtII/2AuI and CuI/2AuI heterometallic complexes of cyclodiphosphazane cis-{(o-MeOC6H4O)P(μ-NtBu)}2
摘要:
Mononuclear complexes of cyclodiphosphazane with an uncoordinated phosphorus centre [RuCl2(eta(6)-cymene){L-kappa P}] (1a) (L = cis-{(o-MeOC6H4O)P(mu-(NBu)-Bu-t)}(2)) and [PdCl2(PEt3)[L-kappa P}] (1b) react with 1 equiv of [AuCl(SMe2)] to afford Ru-II/Au-I and Pd-II/Au-I heterodinuclear complexes [RuCl2(eta(6)-Cymene){mu-L-kappa P,kappa P}(2) AuCl](2) and [PdCl2(PEt3)(mu-L-kappa P,kappa P)AuCl](3), respectively. Heterotrinuclear complexes [PdCl2) {mu-L-kappa P,kappa P}(2) (AuCl)(2)](4), [PtCl2{mu-L-kappa P,kappa P}(2) (AuCl)(2)] (5) and [CuI{mu-L-kappa P,kappa P}(2) (AuCl)(2)] (6) containing Pd-II/2Au(I), Pt(II)2Au(I) and Cu-I/2Au(I) metal centers have been synthesized from the reactions of trans-[PdCl2{L-kappa P)(2)] (1c), cis-[PtCl2 {L-kappa P}(2)] (1d) and [CuI {L-kappa P)(2)] (1f) respectively, with 2 equiv. of [AuCl(SMe2)]. Molecular structures of complexes 2, 3 and 4 were established by single crystal X-ray diffraction studies. (C) 2007 Elsevier Ltd. All rights reserved.