ELECTRICAL-CONDUCTIVITY PROPERTIES OF SOME O-SUBSTITUTED ARYLAZO - BARBITURATE COMPLEXES AT DIFFERENT TEMPERATURES

Electrical conductivity properties of some o-substituted arylazo-barbiturate complexes at different temperatures are studied. The sigma-o, DELTA-E and E(g) values are determined. The copper complexes derived from -H, -CH3 and -OCH3 substituted organic compounds are with semi-conducting properties at low temperatures and insulator at high temperatures. All the carboxy and the cobalt and the the nitro complexes, and nickel-methyl complexes are of semiconducting behaviour. The data are explained in the light of extrensic and lattice vibrations and the width of the forbidden energy gap properties.