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ESR Approach to the Nature of Solvation by Using s-Butyl n-Heptafluorobutyryl Nitroxide Probe

ESR Approach to the Nature of Solvation by Using s-Butyl n-Heptafluorobutyryl Nitroxide Probe
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摘要 Stable s-butyl n-heptafluorobutyryl nitroxide 3 has been generated in an electron transfer reaction in F113 ( CFCl2CF2Cl ) solution at r.t. The aN values for 3 in 11 aprotic solvents show a linear correlation with cybotactic solvent parameters ET and Z. The physical significance for slopes, slope×ET or slope×Z, and the extrapolated intercepts on the aN axis are well established. The plots of aN versus noncybotactic solvent parameters, such as dipolar moment and dielectric constant, are badly behaved. Stable s-butyl n-heptafluorobutyryl nitroxide 3 has been generated in an electron transfer reaction in F113 ( CFCl2CF2Cl ) solution at r.t. The aN values for 3 in 11 aprotic solvents show a linear correlation with cybotactic solvent parameters ET and Z. The physical significance for slopes, slope×ET or slope×Z, and the extrapolated intercepts on the aN axis are well established. The plots of aN versus noncybotactic solvent parameters, such as dipolar moment and dielectric constant, are badly behaved.
出处 《Chinese Chemical Letters》 SCIE CAS CSCD 2002年第8期769-772,共4页 中国化学快报(英文版)
关键词 s-Butyl n-heptafluorobutyryl nitroxides aN solvent parameters solvation. s-Butyl n-heptafluorobutyryl nitroxides, aN, solvent parameters, solvation.
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