ChemInform Abstract: EPR Studies of 1‐Methyl‐2‐substituted‐5‐pyrrolylcarbonyl Fluorinated Nitroxides and Dual‐Parameter Correlation Analysis of Their Hyperfine Splitting Constants.

Abstract

EPR Studies of 1-Methyl-2-substituted-5-pyrrolylcarbonyl Fluorinated Nitroxides and Dual-Parameter Correlation Analysis of Their Hyperfine Splitting Constants.-Freon-113 solutions of H-abstracting bis-per(poly)fluoroalkyl nitroxides and fluorinating nitrosoalkanes, generated simultaneously by the reaction of the corresponding perfluorocarboxylic anhydrides with NaNO 2 , are used to study the generation of new nitroxides (III) and (IV) by EPR. Correlation analysis of their a N values are mainly affected by the polar effect of the 2-substituent, but the spin-delocalization effect also exists.