A HINDERED ROTATION OF THE SUBSTITUENTS IN SOME PHENOXYL RADICAL AS STUDIED BY ENDOR

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<jats:title>Abstract</jats:title> <jats:p>The ENDOR spectrum of bis-(3,5-di-t-butyl phenoxyl)-methyl was observed from −80°C to −20°C. The hyperfine coupling constants of both the ring and the t-butyl protons were precisely measured, and the saturation behavior of these ENDOR absorption was investigated. The temperature dependence of the hyperfine coupling constants was studied and the evidences of a restricted rotation of both phenoxyl and t-butyl groups were demonstrated in this radical.</jats:p>

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  • Chemistry Letters

    Chemistry Letters 1 (8), 681-684, 1972-08

    Oxford University Press (OUP)

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