Document Detail

An ESR study of the radicals in X-irradiated L-alpha-amino-n-butyric acid HCl containing 1.5% L-cysteine HCl.
MedLine Citation:
PMID:  2849778     Owner:  NLM     Status:  MEDLINE    
After X-irradiation at room temperature, the radicals in L-alpha-amino-n-butyric acid HCl are CH3CH2CHCOOH. The beta- and alpha-hyperfine constants are typical of those found in amino acid radicals. On annealing at temperatures near 100 degrees C this carbon-centered radical in samples containing 1.5% cysteine converts to a perthiyl radical, RCH2S(1)S(2). The g-values for the perithiyl radical are 2.0024, 2.0257, and 2.0557. When the field is in the minimum g-value direction, the hyperfine splittings are 50 G for 33S(2) and 32 G for 33S(1).
H Shields; Y Haven; P J Hamrick; Y Ma
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Radiation research     Volume:  116     ISSN:  0033-7587     ISO Abbreviation:  Radiat. Res.     Publication Date:  1988 Dec 
Date Detail:
Created Date:  1989-02-06     Completed Date:  1989-02-06     Revised Date:  2012-01-25    
Medline Journal Info:
Nlm Unique ID:  0401245     Medline TA:  Radiat Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  373-8     Citation Subset:  IM; S    
Department of Physics, Wake Forest University, Winston-Salem, North Carolina 27109.
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MeSH Terms
Aminobutyric Acids / radiation effects*
Cysteine / radiation effects*
Electron Spin Resonance Spectroscopy
Reg. No./Substance:
0/Aminobutyric Acids; 52-90-4/Cysteine; 80-60-4/alpha-aminobutyric acid

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