Synthesis and characterization of dinuclear ruthenium(II) and ruthenium(III) acetylacetonato complexes with dianion of 2,5-dihydroxy-1,4-benzoquinone as bridging ligand

摘要

Synthesis of [{(acac)_2Ru}_2(mu-L)] and [{(bipy)(acac)Ru}_2(mu-L)] (where acac=acetylacetonato, bipy = 2,2'-bipyridine) has been achieved by the reaction of K_2L (where K_2L = dipotassium salt of 2,5-dihydroxy-1,4-benzoquinone) with two equvalents of cis-[Ru~(III)(acac)_2(CH_3CN)_2] or [Ru~(III)(acac)(bipy)]. The complexes have been characterized on the basis of elemental analyses, magnetic susceptibility and conductivity data, IR, UV-visible and ~1H NMR spectral data and cyclic voltammetric studies.