Synthesis and study of new conducting salts based on DMET analogues containing a (X-CH2-CH2-X) group with X = O or Se

In this work, we describe the synthesis of DMET analogues I and II. Both their charge transfer complexes with TCNQ and series of radical cation salts are presented. Their electrical conductivity at room temperature and, in some cases, measurements as a function of T, are reported.