A THERMODYNAMIC STABILITY SCALE FOR STABLE, ISOLABLE FREE RADICALS.

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Abstract:

During the report period, seven galvinoxyl derivatives were placed on an approximate stability scale based on their affinities for the H atom furnished by diphenylpicrylhydrazine in benzene. Although the stability scale is not very accurate, it appears to be essentially correct. The thermodynamic groundwork on which the scale is based allows the delta F values to be cross-checked. Four experiments on the galvinoxyl-diphenylpicrylhydrazine system were also performed in 90 tert. butyl alcohol-10 benzene. The value obtained for delta F is 0.97 0.02 kcal. at 30 degrees. Free radical scavenger experiments with Koelschs radical are reported. Author

Author(s):
Lamb, Robert C. ; Clark, Carroll T.
Author Organization(s):
GEORGIA UNIV ATHENS
Descriptive Note:
Final technical rept., 1 Oct 61-30 Sep 63,
Annotation:
Thermodynamic stability scale for stable, isolable free radicals.
Pagination:
0028

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFOSR-J1520
Monitor Series:
J1520
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*FREE RADICALS, CHEMICAL REACTIONS), (*POLYCYCLIC COMPOUNDS, FREE RADICALS), (*CHEMICAL EQUILIBRIUM, FREE RADICALS), STEREOCHEMISTRY, THERMOCHEMISTRY, HEAT OF FORMATION, CHEMICAL REACTIONS, REACTION KINETICS, STABILITY, ORGANIC SOLVENTS, DECOMPOSITION, KETONES, PEROXIDES, AROMATIC COMPOUNDS, NITRATES
Keyword(s):
DIPHENYLPICRYLHYDRAZYL, FREE RADICAL SCAVENGERS, GALVINOXYL
Report Date:
1963 Nov 29