The Synthesis And Characteraction Of The Unsymmetrical Nickel Phthalocyanine And The Study Of Properties

Phthalocyanine（PC as its abbreviation）was discovered by accident for the first timein1907. During the long time, the interest for people to study it has increased instead ofdecreased. What accounts for this are its special structure and its outstanding physical andchemical properties, and also its potential application value in many fields.The16hydrogen atoms at the edge of Phthalocyanine benzene ring could be replacedto form various phthalocyanine derivatives; the ring cavity could contain various kinds ofmental to form metal phthalocyanine. The variety and modification of this type of molecularstructure widened the application of phthalocyanine materials. Substituent group of differenttypes and number are brought in at the peripheral benzene ring of phthalocyanine, whichcould be combined to asymmetric phthalocyanine compounds of different properties. Studyshows that asymmetric phthalocyanine compounds have more advantages by comparison. Forexample, stronger second order nonlinear activity, better dissolubility and better filmformation property, which shows essential application value. To further explore the uniquefunctions of phthalocyanine materials, many laboratory chemists have already began thestudy for asymmetric phthalocyanine.Part one of this thesis aims at summarizing the synthesis and application aspect ofasymmetric phthalocyanine.1. Synthesis aspect of asymmetric phthalocyanine. Severalimportant synthetic methods of asymmetric phthalocyanine are summarized, emphasizing onthe synthetic method of AAAB type asymmetric phthalocyanine, mainly as follows:statistical method, polymer polarization method, phthalocyanine ring expanding method,polymer support method, at the same time, advantages and disadvantages of these methodsare analyzed and the improvement methods are provided.2. The application aspect ofasymmetric phthalocyanine. Due to the difference of replace groups, asymmetricphthalocyanine has more outstanding chemical and physical properties. This thesis mainlysummarizes the application of it on organic non linear optical and gas sensor. The second partof this thesis explains the synthesis of the two symmetric phthalocyanine and asymmetricphthalocyanine of similar structure, and further study is done to study its properties byanalyzing and testing the structure of this asymmetric phthalocyanine.