Royal Society of Chemistry, Dalton Transactions, 23(42), p. 8188, 2013
DOI: 10.1039/c3dt50988e
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The reaction of 2-pyridyltetrazolate with [Re(CO)5X] (X = Cl, Br) yielded the formation of an unexpected cyclic metallacalix[3]arene, as revealed by X-ray structural studies, characterised by aqua emission and reversible three-electron oxidation.