ic502422u_si_002.cif (29.86 kB)

Tetranuclear Ruthenium(II) Complex with a Dinucleating Ligand Forming Multi-Mixed-Valence States

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posted on 15.12.2014, 00:00 by Shingo Ohzu, Tomoya Ishizuka, Hiroaki Kotani, Yoshihito Shiota, Kazunari Yoshizawa, Takahiko Kojima
A square-shaped tetranuclear ruthenium­(II) complex, [RuII4Cl5(bpmpm)2]3+ [1; bpmpm = 4,6-bis­[[N,N-bis­(2′-pyridylmethyl)­amino]­methyl]­pyrimidine], exhibited four reversible and stepwise one-electron-oxidation processes: chemical oxidation of 1 formed three different mixed-valence states, in one of which the charge is partially delocalized on the two Ru centers, to be evidenced by observation of an intervalence charge-transfer absorption band, categorized into the Robin–Day class II.

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