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An ENDOR study of the canthaxanthin cation radical in solution

✍ Scribed by L. Piekara-Sady; A.S. Jeevarajan; L.D. Kispert

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 397 KB
Volume: 207
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)87010-z

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✦ Synopsis

The cation radical of canthaxanthin was generated electrochemically in dichloromethane and its solution ENDOR spectrum is reported for the first time. The isotropic proton hypertine coupling constants are in reasonable agreement with those calculated by RHF-INDO/SP molecular orbital methods for a planar all-trans-polyene conformation. Proton couplings less than 1.1 MHz were not detected due in part to incomplete hype&e separation and chemical exchange processes.

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