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Oxygen binding of water-soluble cobalt porphyrins in aqueous solution
Authors:Collman James P  Yan Yi-Long  Eberspacher Todd  Xie Xiangjin  Solomon Edward I
Institution:Department of Chemistry, Stanford University, California 94305-5080, USA. jpc@stanford.edu
Abstract:Water-soluble cobalt porphyrin 1Co and imidazole ligand 2 were synthesized. 1Co binds dioxygen in the presence of imidazole ligand 2 in aqueous solution. The formation of the oxygen adduct 2-1Co(O(2)) was studied using UV-vis and EPR spectroscopy. The impact of pH on the kinetic stability of the oxygen adduct was examined.
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