The temperature dependence of the visible/ultraviolet spectra of some cobalt, vitamin B-12 model, compounds

The visible/ultraviolet spectra of aqua- and pyridine-alkyl(10-hydroxyimino-3,9-dimethyl4,8-diazaundeca-3,8-dien-2-oneoximato- N, N′, N′′, N′′′)cobalt perchlorates have been found to be very sensitive to temperature. The phenomenon fits the explanation of an equilibrium between two forms of complex,...

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Bibliographic Details
Published inBiochimica et biophysica acta Vol. 538; no. 3; pp. 635 - 638
Main Authors Green, Michael, Tauzher, Gianni
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier B.V 01.02.1978
Subjects
Cobalt
Pyridines
Spectrophotometry
Spectrophotometry, Ultraviolet
Temperature
Vitamin B 12
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ISSN0304-4165
0006-3002
1872-8006
DOI10.1016/0304-4165(78)90425-7

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Summary:The visible/ultraviolet spectra of aqua- and pyridine-alkyl(10-hydroxyimino-3,9-dimethyl4,8-diazaundeca-3,8-dien-2-oneoximato- N, N′, N′′, N′′′)cobalt perchlorates have been found to be very sensitive to temperature. The phenomenon fits the explanation of an equilibrium between two forms of complex, one with a short and the other a long cobalt-ligand bond.
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ISSN:0304-4165
0006-3002
1872-8006
DOI:10.1016/0304-4165(78)90425-7