Electrical and magnetic properties of new polyacene quinone radical co-polymers synthesized by condensation

Abstract

We have synthesized several new polyacene quinone radical co-polymers first by condensation and experimentally found a kink at about 1.1 (kbar) on plots of log d. c. conductivity versus the square root of external pressure in a range from 0.1 to 10 (kbar); a possibility of application of Mott's T 1 4 -law to higher temperature region (290–400K); and analogue trends of change between d.c. conductivity and spin concentration, g factor and peak-to-peak linewidth with mole fraction of 4, 4' - (hexafluoroisopropylidene) - diphthalic anhydride (HFDA) introduced. Here, we have given the reasonable explaination of these experimental results.