| Abstract: | The present investigation describes a new approach for the determination of radical substituent parameters σ. The technique has been developed by an ingenious combination of two equations, one proposed by Yamamoto and Otsu and the other by Streitwieser and Perrin. The σ values for different substituents were first evaluated by application of this newly developed technique to the Ce(IV)-substituted toluenes–acrylonitrile system. The validity of these values was then tested by application to another system, the Ce(IV)-substituted acetophenones–acrylonitrile system, which is the subject of the present study. |
