title: Mixed valency in hydrogen bonded 'dimers of dimers'.
abstract: Dimolybdenum quadruply bonded compounds containing a pendant lactam functional group form self-complementary hydrogen bonded 'dimers of dimers' in the solid-state and CH(2)Cl(2) solutions. Electrochemical studies in CH(2)Cl(2) show two consecutive one-electron redox processes corresponding to oxidation of the Mo(2)(4+) 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.
authors: Department of Chemistry, University of Sheffield, Sheffield, S3 7HF, UK.
authors: Luke A
authors: LA
authors: Wilkinson
authors: Laura
authors: L
authors: McNeill
authors: Anthony J H M
authors: AJ
authors: Meijer
authors: Nathan J
authors: NJ
authors: Patmore