Electron spin resonance study of radical adducts of unsaturated dicarboxylic and tricarboxylic acids

An esr study of the addition reactions of * OH, CO 2 −* , SCO 3 −* , and * PO 3 2− radicals to the anions of aconitic, itaconic, and chelidonic acids is reported. There was an electron transfer reaction between CO 2 −* and chelidonic acid anion. The phosphite radical reacted with chelidonic acid to...

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Bibliographic Details
Published in:Canadian journal of chemistry 1979-06, Vol.57 (12), p.1500-1505
Main Authors: Adeleke, Babatunde B, Faniran, Joshua A
Format: Article
Language:English
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Summary:An esr study of the addition reactions of * OH, CO 2 −* , SCO 3 −* , and * PO 3 2− radicals to the anions of aconitic, itaconic, and chelidonic acids is reported. There was an electron transfer reaction between CO 2 −* and chelidonic acid anion. The phosphite radical reacted with chelidonic acid to produce two types of radicals resulting from addition to C=C and the oxygen of the carbonyl group in the acid. The radical adducts of the anions of aconitic and itaconic acids exhibited extensive linebroadenings due to hindered internal rotations. The barrier to internal rotations is shown to be the repulsive forces between the negative charges on the various substituents.
ISSN:0008-4042
1480-3291
DOI:10.1139/v79-245