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Triply bridged dinuclear ruthenium complexes bearing alkylbis(2-pyridylmethyl)amine in the mixed-valence state of Ru(II)–Ru(III)

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Abstract

Triply halogeno and methoxido-bridged dinuclear ruthenium complexes bearing a tridentate ancillary ligand, alkylbis(2-pyridylmethyl)amine (alkyl, ethyl and benzyl), in the Ru(II)–Ru(III) mixed-valence state were synthesized by reduction reactions of the trichloridoruthenium(III) complex, fac-[RuIIICl3(ebpma)], followed by chlorido-substitution and oxidation reactions in air. The conversion of the bridging ligands of the diruthenium complexes was also made possible through reduction of the dinuclear core. The electronic structures of the mixed-valence state were investigated by electron spin resonance (ESR), X-ray crystallography, electrochemical measurements and UV-vis-near infrared (NIR) spectroscopy. The mixed-valence state of all the triply bridged complexes was stable and classified as Class III.

Graphical abstract: Triply bridged dinuclear ruthenium complexes bearing alkylbis(2-pyridylmethyl)amine in the mixed-valence state of Ru(ii)–Ru(iii)

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Publication details

The article was received on 29 Aug 2018, accepted on 22 Oct 2018 and first published on 31 Oct 2018


Article type: Paper
DOI: 10.1039/C8DT03507E
Citation: Dalton Trans., 2018, Advance Article
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    Triply bridged dinuclear ruthenium complexes bearing alkylbis(2-pyridylmethyl)amine in the mixed-valence state of Ru(II)–Ru(III)

    T. Misawa-Suzuki, K. Matsuya, T. Watanabe and H. Nagao, Dalton Trans., 2018, Advance Article , DOI: 10.1039/C8DT03507E

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