Synthesis and electrical properties of novel supramolecular octa-phthalocyaninato-dicobalt(II)-hexazinc(II) and dicobalt(II)-dimeric-phthalocyanine with six ferrocenylimin pendant groups

摘要: Abstract In this study supramolecular octakis phthalocyaninato-diCo(II)hexakis-Zn(II) has been synthesized in two steps. Starting with tetracyanodibenzo(1,4,7,10-tetrathia-(12-crown)) ( 1 ) and 4-nitro-1,2-dicyanobenzene 2 ), nitro-substituted dimeric phthalocyanine 3 was synthesized. Compound reacted unsymmetric Zn(II) 4 to furnish a assemble of Co(II) dimer six phthalocyanines through azo bridges 5 ). ferrocenyl groups 7 obtained by the condensation 6 ferrocenylaldehyde. Compounds , were characterized elemental analysis, ICP-MS, IR, UV–Vis H NMR spectroscopy. The electronic properties thin film compounds investigated impedance spectroscopy d.c. conductivity measurements as function temperature. a.c. is found vary frequency, ω s index  ⩽ 1, suggesting hopping conduction mechanism for . Whereas frequency independent observed It that reducing nitro group amines coupling asymmetric increases electrical conductivity. higher can be attributed increase mobility charge carriers due overlap π electron systems along stacking direction molecules.