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Raman spectroscopic analysis of isomers of biliverdin dimethyl ester
Citation key ISI:A1997XJ88000016
Author Matysik, J and Hildebrandt, P and Smit, K and Mark, F and Gartner, W and Braslavsky, S E and Schaffner, K and Schrader, B
Pages 1319-1324
Year 1997
ISSN 0731-7085
Address THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB
Journal J. Pharm. Biomed. Anal.
Volume 15
Number 9-10
Month JUN
Note 7th International Symposium on Pharmaceutical and Biomedical Analysis (PBA 96), OSAKA, JAPAN, AUG 20-23, 1996
Publisher PERGAMON-ELSEVIER SCIENCE LTD
Organization Chem Soc Japan; Japan Soc Anal Chem; Japanese Biochem Soc; Japan Soc Biosci Biotechnol & Agrochem; Japan Soc Clin Chem; Soc Chromatog Sci; Japanese Soc Study Xenobiot; Bioimaging Soc
Abstract The constitutional isomers of biliverdin dimethyl ester, IX alpha and XIII alpha, were studied by resonance Raman spectroscopy. The far-reaching spectral similarities suggest that despite the different substitution patterns, the compositions of the normal modes are closely related. This conclusion does not hold only for the parent state (ZZZ, sss configuration) but also for the configurational isomers which were obtained upon double-bond photoisomerization. Based on a comparison of the resonance Raman spectra, a EZZ configuration is proposed for one of the two photoisomers of biliverdin dimethyl ester IX alpha, while a ZZE, ssa configuration has been assigned previously to the second isomer. (C) 1997 Elsevier Science B.V.
Bibtex Type of Publication Proceedings Paper
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