Inorganic Chemistry, Vol.44, No.21, 7271-7273, 2005
First structural characterization of a delocalized, mixed-valent, triangular Cu-3(7+) species: Chemical and electrochemical oxidation of a Cu-3(II)(mu(3)-O) pyrazolate and electronic structure of the oxidation product
The chemical or electrochemical one-electron oxidation of the all-Cu '' complex [Cu-3(mu(3)-O)(mu-pz)(3)X-3](2-) leads to its formally Cu ''Cu-2 ''' analogue (pz = pyrazolato anion; X = Cl- and PhCOO-). The X-ray single-crystal structure and density functional theory analysis of the latter agree in revealing the delocalized nature of its mixed-valent CU37+ core.