KUNKELY, H and VOGLER, A (1993) PHOTOLYSIS OF METHYLCOBALAMIN - NATURE OF THE REACTIVE EXCITED-STATE. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 453 (2). pp. 269-272. ISSN 0022-328X,
Full text not available from this repository.Abstract
Photolysis of methylcobalamin (Co(III)corrin(CH3)L + H2O + O2 --> Co(III)(H2O)L + H2CO + OH-) shows a pronounced wave-length dependence. It is suggested that the reactive excited state is of the ligand-to-ligand charge transfer (LLCT) type and involves the promotion of an electron from the Co-C sigma-bond to a pi*(corrin) orbital. This LLCT transition mixes with the pipi*(corrin) transitions. Owing to this LLCT contribution, the pipi*-absorption bands are also photoactive but with reduced efficiency.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TRANSITION-METAL COMPLEXES; SPECTRA; ALKYLCOBALAMINS; PHOTOCHEMISTRY; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:42 |
| URI: | https://pred.uni-regensburg.de/id/eprint/53882 |
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