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Mixed valency in hydrogen bonded ‘dimers of dimers’

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JournalJournal of the American Chemical Society
DatePublished - 2013
Issue number5
Volume135
Number of pages4
Pages (from-to)1723-1726
Original languageEnglish

Abstract

Dimolybdenum quadruply bonded compounds containing a pendant lactam functional group form self-complementary hydrogen bonded ‘dimers of dimers’ in the solid-state and CH2Cl2 solutions. Electrochemical studies in CH2Cl2 show two consecutive one-electron redox processes corresponding to oxidation of the Mo24+ cores. Spectroelectrochemical studies on the ‘dimers of dimers’ show no evidence of intervalence charge transfer bands in the mixed valence radical cations formed by one-electron oxidation, indicating that they are examples of proton-coupled mixed valency.

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