Synthesis, Structure and Reactivity of Homo- and Heterobimetallic Complexes of the General Formula [Cp*Ru(m-Cl)3ML] (LM = (arene)Ru, Cp*Rh, Cp*Ir)
The homo- and heterobimetallic complexes [Cp*Ru(m-Cl)3-ML] [LM = (C6H6)Ru, (cymene)Ru, (1,3,5-C6H3iPr3)Ru, Cp*Rh, Cp*Ir] were prepd. by reaction of [Cp*Ru(m-OMe)]2 with Me3SiCl and subsequent addn. of [LMCl2]2. The complexes [Cp*Ru(m-Cl)3Ru(cymene)] and [Cp*Ru(m-Cl)3-IrCp*] were characterized by single-crystal X-ray analyses. In crossover expts. with [Cp*Rh(m-Cl)3RuCl(PPh3)2] and [Cp*Ru(m-Cl)3Ru(1,3,5-C6H3iPr3)] in CD2Cl2, a dynamic equil. with the complexes [Cp*Rh(m-Cl)3RuCp*] and [(1,3,5-C6H3iPr3)Ru(m-Cl)3RuCl(PPh3) 2] was rapidly established, demonstrating the kinetic lability of the triple chloro bridge. Upon reaction of [Cp*Rh(m-Cl)3RuCp*] with benzene, the ionic complex [Cp*Ru(C6H6)][Cp*RhCl3] was formed, which was characterized by X-ray crystallog.
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Record created on 2006-02-13, modified on 2016-08-08