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Time-resolved ESR spectra of the α-hydroxybenzyl-amine complex

✍ Scribed by Akio Kawai; Yasuhiro Kobori; Kinichi Obi

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
490 KB
Volume
215
Category
Article
ISSN
0009-2614

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✦ Synopsis

Time-resolved ESR spectra of the a-hydroxybenzyl radical were measured in benzene and 2-propanol solutions by the photodissociation of benzoin. The hyperfiie structure (hfs) of a-hydroxybenzyl depends on the solvents. In a benzene solution containing triethylamine, two species with different hypertime structure appeared simultaneously. As the ratio of intensity for the two species depends on the concentration of triethylamine, one of them is assigned to the bare a-hydroxybenzyl and the other to the 1: 1 complex of a-hydroxybenzyl and triethylamine. The equilibrium constant of complex formation was estimated, to be about 450 M-' from the analysis of CIDEP intensities.

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