Synthesis and physico-chemical properties of diruthenium(III, II) tetra-aryl carboxylato compounds

Das, Birinchi K. ; Chakravarty, Akhil R. (1988) Synthesis and physico-chemical properties of diruthenium(III, II) tetra-aryl carboxylato compounds Polyhedron, 7 (9). pp. 685-687. ISSN 0277-5387

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S02775...

Related URL: http://dx.doi.org/10.1016/S0277-5387(88)80038-X

Abstract

Monochloro-tetra-μ-aryl-carboxylatodiruthenium(III, II) compounds Ru2Cl (O2CAr)4 (Ar = -C6H5; -C6H4-p-OCH3), are prepared and characterized. The compounds have magnetic moments that correspond to three unpaired spins per dimer. The RuRu bond order is 2.5 and the ground electronic configuration is σ24δ2(δ∏)3. The visible spectral band is observed at ca 450 nm along with a shoulder near 580 nm in DMF solution. The compounds undergo a one-electron Ru(III)Ru(II) → Ru(II)Ru(II) quasi-reversible reduction in DMF near 0.0 V vs sce.

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