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Journal of the Chemical Society, Dalton Transactions
Metal derivatives (Cu II , Ni II ) of monooxa-, dioxa-and oxathia-tetraphenylporphyrins and their one-electron oxidised and reduced species have been studied. Electronic spectra of the monooxa and oxathia derivatives exhibit split Soret bands and a complicated pattern of Q-bands revealing their lower symmetry. The spectra of one-electron reduced species show only marginal shifts while the one-electron oxidised product of copper monooxaporphyrins show broad, red-shifted bands. Cyclicdoi:10.1039/a801934g fatcat:per3whzqtvbfzoadapae336ywu