Comparative Esr Studies of Solid Polycrystalline Alkali Metal Salts of Tcnq and Tcnqf₄

Abstract

The results of comparative ESR studies of the polycrystalline salts of alkali metal TCNQ and TCNQF₄ are presented. The temperature dependence of the relative magnetic susceptibility as determined by ESR techniques is presented. All the TCNQ salts studied show a thermally activated paramagnetism, whereas, at least, one of the TCNQF₄ salts follows Curie Law. The principal components of the g-tensors have been measured as a function of temperature. There is considerably more variation in both sets of measurements from alkali metal to alkali metal for the salts prepared from TCNQF₄ than there is for those prepared from TCNQ.