ISSN:
0377-0486
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
The UV Raman excitation profiles of l-cystine have been measured between 220 and 514.5 nm. No enhancement is observed from the lowest energy electronic transition (λmax = 245 nm). The excitation profiles for the S—S, C—S and C=O stretching vibrations are each satisfactorily modeled by standard Albrecht A-term pre-resonance expressions which indicate that the Raman intensities derive from a state(s) at ca 170 nm which is probably σ → σ* in character. Selective enhancement of disulfide stretching vibrations in proteins will require excitation in the vacuum UV spectral region.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jrs.1250180509
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