Abstract
According to UHF/INDO calculations of the model conformations of the chlorinated nitrobenzene radical anions, the rotation of the nitro group relative to the plane of the benzene ring is accompanied by its pyramidal deformation caused by the pseudo-Jahn–Teller effect. The degree of the structural distortions of the chlorinated nitrobenzene radical anions depends on the arrangement of the chlorine atoms in the benzene ring and on the solvent, increasing from DMF to its mixtures with water. The isotropic hyperfine coupling constants and their dependence on the water content in a binary mixture of solvents are interpreted for a number of chlorinated nitrobenzene radical anions.
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Starichenko, V.F., Shundrin, L.A., Shchegoleva, L.N. et al. Out-of-Plane Distortions of Chlorinated Nitrobenzene Radical Anions. Journal of Structural Chemistry 41, 778–789 (2000). https://doi.org/10.1023/A:1004854017507
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DOI: https://doi.org/10.1023/A:1004854017507