SYNTHETIC VERSATILITY OF N-TRIMETHYLSILYL-IMIDAZOLE AND N-TRIMETHYLSILYL-2-METHYLIMIDAZOLE AS REAGENTS FOR THE PREPARATION OF METAL-IMIDAZOLATES - PHYSICOCHEMICAL STUDIES ON IMIDAZOLATE-BRIDGED RU(II) AND RU(III) DERIVATIVES
Za. Siddiqi et al., SYNTHETIC VERSATILITY OF N-TRIMETHYLSILYL-IMIDAZOLE AND N-TRIMETHYLSILYL-2-METHYLIMIDAZOLE AS REAGENTS FOR THE PREPARATION OF METAL-IMIDAZOLATES - PHYSICOCHEMICAL STUDIES ON IMIDAZOLATE-BRIDGED RU(II) AND RU(III) DERIVATIVES, Synthesis and reactivity in inorganic and metal-organic chemistry, 23(5), 1993, pp. 709-722
The reagent Me3Si-L is versatile for conversion of M-Cl bonds into met
al-imidazolates. Reactions with RuCl3 and [Ru(Ph3E)2Cl3(MeOH)] yield [
RuClL2] and [Ru(Ph3E)2L3] (E = P or As; L = imidazolate, Iz or 2-methy
limidazolate, MeIz) respectively, whereas [Ru(Ph3P)3Cl2] affords [Ru(P
h3P)2L2]. The stoichiometry of the compounds is consistent with the ob
served analytical data. The i.r. and U.V.-visible spectroscopic, condu
ctivity and magnetic susceptibility measurement data indicate oligomer
ization with imidazolate bridging via the pyridyl nitrogen resulting i
n stable octahedral configurations around the ruthenium ion.