Electrical Properties of Some Cobalt Phthalocyanines

Highly interesting electrical behaviour of some phthalocyanines have been reported earlier by the authors and others. For example, the dielectric constant of certain copper and iron phthalocyanines have been found to be very high (of the order of 10 -10 ) depending on the temperature. The conductivity of the compounds depend on parameters like the nature of the central metal atom, degree of polymerization, pendant group structure (including end groups), atmosphere, temperature, pressure etc. The conductivity and dielectric properties of monomeric and polymeric CoPc prepared under different conditions are discussed.