SYNTHESIS AND ELECTRICAL-PROPERTIES OF METALLOTRIAZOLEHEMIPORPHYRAZINES

Two series of first-row transition metal complexes based on triazolehe miporphyrazines were prepared by reaction of the free ligands 3a and 4 a with the corresponding metal(II) salt. Compound 4a was prepared eith er by condensation of the pyridine derivative 5 with 3,5-diamino-1,2,4 -triazole or by reaction of the three-unit triazole 6 with 2,6-diamino pyridine. Compounds 3 and 4 were characterized by elemental analyses, IR and FAB-MS. Metallotriazolehemiporphyrazines 3 show electrical cond uctivities in the range 5 x 10(-12) -2 x 10(-10) S/cm. Oxidation of me tal complexes 3 with iodine give doped compounds which show increased conductivity in comparison with the precursors. Doped (iodine) copper triazolehemiporphyrazine 3f shows semiconducting properties (1.0 x 10( -6) S/cm).