Inhaltszusammenfassung

Reaction of mixed valence ruthenium tetracarboxylates [Ru-2(II,III)((RCOO)-C-1)(2)((RCOO)-C-2)(2)Cl] (R-1 = Me, R-2 = 2,4,6-Pr-i-Ph or R-1 = R-2 = Bu-t) with two equivalents of the octahedral manganese complex [Mn-I(CO)(CN)((BuNC)-Bu-t)(4)] leads to the formation of cyanide bridged heteronuclear coordination compounds of the general formula {[Ru-2(II,III)((RCOO)-C-1)(2)((RCOO)-C-2)(2)][Mn-I(CO)(CN)((BuNC)-Bu-t)(4)](2)}Cl. In solution an intramolecular electron transfer from manganese towards ...Reaction of mixed valence ruthenium tetracarboxylates [Ru-2(II,III)((RCOO)-C-1)(2)((RCOO)-C-2)(2)Cl] (R-1 = Me, R-2 = 2,4,6-Pr-i-Ph or R-1 = R-2 = Bu-t) with two equivalents of the octahedral manganese complex [Mn-I(CO)(CN)((BuNC)-Bu-t)(4)] leads to the formation of cyanide bridged heteronuclear coordination compounds of the general formula {[Ru-2(II,III)((RCOO)-C-1)(2)((RCOO)-C-2)(2)][Mn-I(CO)(CN)((BuNC)-Bu-t)(4)](2)}Cl. In solution an intramolecular electron transfer from manganese towards the multiply bonded Ru-2 core occurs that is verified by EPR and IR spectroscopy, magnetic measurements and DFT calculations. Nevertheless, disproportionation of an initially formed {Mn-I-Ru-2(II,III)-Mn-I}(+) adduct into {Mn-II-Ru-2(II,III)-Mn-I}(2+) and {Mn-I-Ru-2(II,II)-Mn-I} species cannot be completely ruled out. » weiterlesen» einklappen

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