Synthesis, electrochemical, in situ spectroelectrochemical and in situ electrocolorimetric characterization of new metal-free and metallophthalocyanines substituted with 4-{2-[2-(1-naphthyloxy)ethoxy]ethoxy} groups

Novel Nonmetalated Hydrophobic and Metalated Phthalocyanines Bearing Pyridine-2-Thiol and 2,4,6-Trimethylphenylamine Substituents: Synthesis, Spectroscopic, Aggregation and Thermal Properties

Novel metal–free and metallo-phthalocyanines, with different substituents at peripheral positions, have been synthesised by cyclotetramerisation of 4-(2,4,6-trimethylphenylamino)phthalonitrile and 4-(pyridine-2-ylsulfanyl)phthalonitrile in the presence of the corresponding divalent metal salts [Zn(II), Cu(II), Co(II) and Ni(II)]. Quaternisation of the metallophthalocyanine functionality produced quaternised cationic Zn, Cu, Ni and Co phthalocyanines, which are soluble in DMF, H2O and DMSO. The aggregation behaviour of these compounds was investigated in different concentrations of DMSO. Their thermal stability and electronic stability are reported.

Electropolymerizable peripherally tetra-{2-[3-(diethylamino)phenoxy]ethoxy} substituted as well as axially (4-phenylpiperazin-1-yl)propanoxy-disubstituted silicon phthalocyanines and their electrochemistry

A novel type of peripherally tetra-substituted as well as axially disubstituted silicon(iv) phthalocyanine containing electropolymerizable ligands was designed and synthesized for the first time.