Substituenteneffekte und Störung von π-Systemen, XXXV Radikalanionen Zinn-substituierter Naphthaline/ Substituent Effects and Perturbation of n Systems, XXXV Radical Anions of Tin-Substituted Naphthalenes

Abstract

Novel radical anions of trimethylstannyl substituted naphthalenes and their ESR spectra are reported. Both ¹¹⁹ Sn and ¹¹⁷ Sn coupling can be assigned unequivocally. The perturbation of π systems by R₃X substituents of group IV b elements X = C, Si, Ge, Sn and Pb is discussed with respect to photoelectron ionization potentials, charge transfer excitations, half-wave reduction potentials and ESR spin distribution.