Synthesis, characterization and electrical properties of novel mono- and cofacial bisphthalocyanines bridged with four [1a,8b-dihydronaphtho[b]naphthofuro[3,2-d]furan-7,10-diyl] units

Abstract

Abstract Novel mono phthalocyanines and cofacial bisphthalocyanines were synthesized from 4,4′-(1a,8b-dihydronaphtho[ b ]naphthofuro-[3,2- d ]furan-7,10-diyl)bis(oxy)diphthalonitrile 1 . The products were characterized by elemental analysis, UV–vis, IR, 1 H NMR and mass spectroscopy. Both the direct current (dc) and alternating current (ac) electrical properties of the product films were investigated as a function of temperature in the frequency range 40–10 5 Hz. It was observed that the ac response of the films can be represented by the ω s law. The temperature dependence of dc conductivity showed typical Arrhenius behavior for all compounds.