名称:
Synthesis and characterization of pentamethylcyclopentadienylrhodium(III) and -iridium(III) complexes with 1,2-benzenedithiolate · [(Cp∗Rh)2(μ(S)-1,2-C6H4S2-S,S′)2], [(Cp∗Rh)2(μ(S)-1,2-C6H4S2-S,S′)(μ(S)-1,2-C6H4S(SO2)-S,S′)] and [(Cp∗Ir)(1,2-C6H4S2-S,S′)] () Professor Peter M. Maitlis on the occasion of his 65th birthday and in recognition of his pioneer contributions to this field
摘要:
A reaction of the triple cubane-type organometallic polyoxomolybdate cluster, [(Cp * Rh)(4)Mo4O16]. 2H(2)O (1 . 2H(2)O), with 1,2-benzenedithiol gives a 1,2-benzenedithiolate-bridged dinuclear complex, [(Cp * Rh)(2)(mu(S)-1,2-C6H4S2-S,S')(2)] (2), and another dinuclear complex, [(Cp * Rh)(2)(mu(S)-1,2-C6H4S2-S,S')(mu(S)-1,2-C6H4S(SO2)-S,S')] (3), both of which are characterized by the single-crystal X-ray diffraction method. The former complex, 2, is also obtained from a reaction of [(Cp * RhCl)(2)(mu-Cl)(2)] with 1,2-benzenedithiol in the presence of NaOCH3, and the latter, 3, from oxygenation of 2 with t-BuOOH. The H-1 NMR study in CD2Cl2 indicates that complex 2 changes gradually to a coordinatively unsaturated mononuclear complex, [Cp * Rh(1,2-C6H4S2-S,S')] (4). An analogous mononuclear iridium(III) complex, [Cp * Ir(1,2-C6H4S2-S,S')] (5), is also prepared and characterized by X-ray structural analysis. (C) 1997 Elsevier Science S.A.