Time-Resolved Spectroscopic Studies of B12 Coenzymes: Influence of Solvent on the Photolysis of Adenosylcobalamin

@inproceedings{Yoder2001TimeResolvedSS,
  title={Time-Resolved Spectroscopic Studies of B12 Coenzymes: Influence of Solvent on the Photolysis of Adenosylcobalamin},
  author={Laurie M. Yoder and Allwyn G. Cole and Larry A. Walker and Roseanne J Sension},
  year={2001}
}
Femtosecond-to-nanosecond transient absorption spectroscopy is used to investigate the photolysis of coenzyme B12, 5‘-deoxyadenosylcobalamin, as a function of solvent environment comparing water, ethylene glycol, and mixtures of water and ethylene glycol. Photolysis in ethylene glycol is characterized by the clean formation of a cob(II)alamin species on a time scale ≤ 28 ps. Competition between cage escape and geminate recombination of the initial radical pair leads to a nanosecond photolysis… CONTINUE READING

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