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Jones'n for electrons: Various Rh complexes (see general structure) were formed with diaminocarbenes that contain 1,1′-disubstituted ferrocenes in their backbones. Electronic communication between the Fe centers in the redox-active carbenes and the coordinated transition metals was observed. For example, the oxidation potential of the Fe center in a bimetallic complex was found to depend on the electron density of the ligated Rh atom.
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Khramov et al. (2008) studied this question.
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