¹³C coupling in the E.S.R. spectrum of the pyrene anion in tetrahydrofuran

Abstract

Examination of the e.s.r, spectrum of pyrene anion in tetrahydrofuran under conditions of high resolution has yielded the ¹³C hyperfine coupling parameters for five of the six carbon positions. The parameters agree well with those calculated by molecular orbital methods. No evidence of ion pair formation was found under the conditions used in these experiments.