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The structure of the 1-1-difluoroethylene radical anion and the factors determining the hyperfine interaction with 19F

โœ Scribed by L.N. Shchegoleva; I.I. Bilkis; P.V. Schastnev

Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
405 KB
Volume
104
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

A structure wit& a pyramidal -CFi group is shown to describe satisfactorily hyperfine interactions in CH&F? radical anions withiri the frahework of the INDO method. The factors responsible for the substantial difference in the degree of spin density delocalization on F in CHzCF? and Cz IQ are analyzed. The ESR spectra of CaFz and CI-&CF~ radicdl anions are characterized by anomalously high (94.3 and 196.4 G, respectively) constants of isotropic hyperfine interaction (hfi) with 19F nuclei [1.2] _ ft

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