The kinetics of reactions of cobalamin (II) and cobinamide (II) with sulfur dioxide was studied by UV-visible (UV-vis) spectroscopy. Reaction results in oxidation of Co(II) center and involves two aquated SO moieties. The final product is suggested to be complex Co(III)-SO . The absence of corrin ring modifications during the reactions was proved.

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http://dx.doi.org/10.1007/s00775-017-1474-zDOI Listing

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