Synthesis, Characterization And Improvement On The Separation Method Of Unsymmetric Phthalocyanine

Phthalocyanine is known as "the twenty-first century functional materials". It has been widely used in photoelectric conversion materals, photochromic materials, electroluminescent materials, sensitive materials of chemical sensor, electrocatalyst and photocatalyst because of its unique structure, high thermal stablities, excellently photo-electrical, magnetic and catalytic characters.In this thesis, first, Dichloro-o-phthalonitrile was synthesized using dichloro phthalic acid. Second,3,4-dimethyl-N B sulfide adjacent dicyanobenzene,4dimethyl-N B sulfide adjacent dicyanobenzene and3-dimethyl-N B sulfide adjacent dicyanobenzene was prepared using dichloro-o-phthalonitrile4-nitro-o-dicyanobenzene,3-nitro-o-dicyanobenzene, N B, dimethyl mercaptan,etc. Finally, three asymmetric zinc phthalocyanines was synthesized by statistical condensation.The final product was separated by column analysis methods. The molecular fragments and final asymmetrical phthalocyanine zinc products were characterized by melting point analysis, infrared absorption spectroscopy and nuclear magnetic resonance. A new type of asymmetrically substituted phthalocyanine molecular fragments of the structures were identified, the synthesis of the new asymmetric zinc phthalocyanine also was tried, and achieved certain resultsAsymmetrical phthalocyanine zinc separation methods were improved by the use of diatomaceous earth, using4,5-dimethyl-N B sulfide zinc phthalocyanine as the basic raw material.That greatly reduced the use of solvents in the column analysis, improved the separation efficiency, reduced the solvent waste and saved separation time.