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Title: EPR study of a vinyl-type radical in X-irradiated. beta. -carotene

Abstract

A vinyl-type radical with proton EPR couplings of 68 and 72 G has been observed at -40/sup 0/C as a secondary radical formed when a sample of trans-..beta..-carotene powder is X-ray irradiated at 77 K in the dark and warmed. An INDO/CI calculation suggests that it is due to the loss of a proton from the 15 or 15' position. 22 references, 3 tables.

Authors:
; ; ;
Publication Date:
Research Org.:
Univ. of Alabama, Tuscaloosa
OSTI Identifier:
5102773
Resource Type:
Journal Article
Journal Name:
J. Phys. Chem.; (United States)
Additional Journal Information:
Journal Volume: 89:10
Country of Publication:
United States
Language:
English
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 14 SOLAR ENERGY; CAROTENOIDS; RADIOLYSIS; VINYL RADICALS; STRUCTURAL CHEMICAL ANALYSIS; CONFIGURATION INTERACTION; COUPLING; COUPLING CONSTANTS; ELECTRON SPIN RESONANCE; EXPERIMENTAL DATA; HYDROGEN; HYDROGEN TRANSFER; LOW TEMPERATURE; MOLECULAR MODELS; X RADIATION; ALKYL RADICALS; CHEMICAL RADIATION EFFECTS; CHEMICAL REACTIONS; CHEMISTRY; DATA; DECOMPOSITION; ELECTROMAGNETIC RADIATION; ELEMENTS; HYDROCARBONS; INFORMATION; IONIZING RADIATIONS; MAGNETIC RESONANCE; MATHEMATICAL MODELS; NONMETALS; NUMERICAL DATA; ORGANIC COMPOUNDS; PIGMENTS; RADIATION CHEMISTRY; RADIATION EFFECTS; RADIATIONS; RADICALS; RESONANCE; TERPENES; 400600* - Radiation Chemistry; 400301 - Organic Chemistry- Chemical & Physicochemical Properties- (-1987); 140505 - Solar Energy Conversion- Photochemical, Photobiological, & Thermochemical Conversion- (1980-)

Citation Formats

Joseph, J, Samskog, P O, Lee, S H, and Kispert, L D. EPR study of a vinyl-type radical in X-irradiated. beta. -carotene. United States: N. p., 1985. Web. doi:10.1021/j100256a042.
Joseph, J, Samskog, P O, Lee, S H, & Kispert, L D. EPR study of a vinyl-type radical in X-irradiated. beta. -carotene. United States. https://doi.org/10.1021/j100256a042
Joseph, J, Samskog, P O, Lee, S H, and Kispert, L D. 1985. "EPR study of a vinyl-type radical in X-irradiated. beta. -carotene". United States. https://doi.org/10.1021/j100256a042.
@article{osti_5102773,
title = {EPR study of a vinyl-type radical in X-irradiated. beta. -carotene},
author = {Joseph, J and Samskog, P O and Lee, S H and Kispert, L D},
abstractNote = {A vinyl-type radical with proton EPR couplings of 68 and 72 G has been observed at -40/sup 0/C as a secondary radical formed when a sample of trans-..beta..-carotene powder is X-ray irradiated at 77 K in the dark and warmed. An INDO/CI calculation suggests that it is due to the loss of a proton from the 15 or 15' position. 22 references, 3 tables.},
doi = {10.1021/j100256a042},
url = {https://www.osti.gov/biblio/5102773}, journal = {J. Phys. Chem.; (United States)},
number = ,
volume = 89:10,
place = {United States},
year = {Thu May 09 00:00:00 EDT 1985},
month = {Thu May 09 00:00:00 EDT 1985}
}