
TY  - JOUR
A1  - Leaver, IH 
A1  - Ramsay, GC 
A1  - Suzuki, E 
T1  - E.S.R. of nitroxide radicals. I. Photolysis of indoles, phenols, disulphides, and thiols
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1969
VL  - 22
IS  - 9
SP  - 1891
EP  - 1897
KW  - 
UR  - https://doi.org/10.1071/CH9691891 
N2  - The formation of stable nitroxide radicals during the photochemical decomposition of a number of indoles, phenols, disulphides, and thiols in the presence of a nitrosoalkane radical scavenger has been demonstrated. The predominant e.s.r. spectrum obtained with dibutyl disulphide or butane-1-thiol consists of a simple triplet hyperfine splitting with aN 18.5 G and g 2.0071, attributed to the trapping of butane-1-thiyl radicals. Phenol and indole give similar triplet spectra with aN 15.55 G, g 2.0061, and aN 16.26 G, g 2.0060, respectively.     The formation of trichloromethyl radicals during the photolysis of indole in carbon tetrachloride has been confirmed by analysis of the e.s.r. spectrum of the trichloromethyl nitroxide radical using a least- squares curve-fitting procedure. Isotropic hyperfine splitting constants for 14N, 35Cl, and 37Cl have been obtained. 
ER  -

