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1. 95-670 GHz EPR studies of canthaxanthin radical cation stabilized on a silica-alumina surface

Author

Konovalova, Tatyana A., Kryzystek, J., Bratt, Peter J., Tol, J. van, Brunel, Louis-Claude, and Kispert, Lowell D.

Subjects
Cations -- Research, Canthaxanthin -- Research, Carotenoids -- Research, Chemicals, plastics and rubber industries
Abstract

Canthaxanthin radical cation chemically generated on silica-alumina underwent 95-670 GHz EPR measurements at 5 K. The 327 GHz and higher frequency EPR spectra were resolved into two main components of the g tensor. Spectral simulation indicated this to be the result of g anisotropy. The results showed that the 327-670 GHz EPR measurements were sufficient to resolve the g tensors of C-H containing pi radicals in powder and frozen glasses.

Published
1999

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