Synthesis and characterization of novel tetra- and octa-triethyleneoxysulfanyl substituted phthalocyanines forming lyotropic mesophases

Metal-free phthalocyanines and nickel phthalocyanines carrying four or eigh t oligo(ethyleneoxy)thia groups on peripheral positions have been synthesiz ed from new phthalonitrile derivatives. These phthalocyanine derivatives we re characterized both thermotropic and lyotropic mesophases by DSC and X-ra y.