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Synthesis Characterization And Propertie Of An Asymmetrical Copper Phthalocyanine Aggregates

Posted on:2011-07-11Degree:MasterType:Thesis
Country:ChinaCandidate:T Z ShiFull Text:PDF
GTID:2121360305989382Subject:Organic Chemistry
Abstract/Summary:PDF Full Text Request
Compared with the general phthalocyanine, the unsymmetrical phthalocyanine that formated with different electronics replace in the periphery of the phthalocyanine molecule it has superior solubility,good optical activity of second-order nonlinear, the LB film-forming and other more physical ,chemical ,opticalproperties.the unsymmrtrical phthalocyanine has very important value in the non-linear optical matericals,molecularrectifier,gassensor, photodyna mic therapy of cancer,Ptotoinduced Charge Transfer, etc.but thesynthesis of the asymmetric phthalocyanine is still in its infancy ,various synthesis methods of which ,are still has various disadvantage, for example , complex steps in the process of synthesis product, synthesis of target molecule exist randomness and uncertainty ,difficulties in separation and purification ,all of that limiting its application.Meanwhile, the super-molecule chemistry is a relatively young but popular inter disciplinary .the supermolecular structure has the unique characteristics and excellent chemical properties. its has been extensive public attention and widely applications .however the supermolecular combining the advantages of asymmetric phthalocyanine less reporting ,we look forward to combining the advantages of the above two areas ,therefore ,this paper has done from the following two detailed improvement and further research .1)In the synthesis of symetrical phthalocyanine, a kind of optical activity (2-(2- Isopropyl phenoxy) -9,16,23-tris (5-methyl -2 - isopropyl phenyl-oxy) copper phthalocyanine asymmetry was obtained via instant high temperature(185℃) ,DBU as catalyst, under the conditions of n-octanol solvent. In addition, due to the introduction of a larger outer ring of the substituent steric hindrance making it easy to become isolated by reason of the larger steric hindrance to reduce the product of the association between the product of the dissolution behavior and improve performance. and were fully characterized by UV2Vis, 1HNMR, MS spectra and elementa. we obtained a new synthesis method of asymmetric phthalocyanine (A3B). and based on the analysis of intermediate-product of the DBU catalytic mechanism of the preliminary , provided some theoretical basis in study .2) The inherent asymmetry of optically active phthalocyanine copper, using two kinds of density, solubility of different organic solution layer slowly decentralized approach, has become a kind of supramolecular self-assembly nano-structures, and so on through the XED method their micro-structures were characterized, have been of metal ions as a template of the dual-core double-helix structure. Will be asymmetrical phthalocyanine optical, electrical and magnetic properties with the ultra-fine nano-structure of helical molecules closely linked, are expected in the next period of time to work out in the optical sensing and optical storage to play a greater role in organic intelligent materials.
Keywords/Search Tags:asymmetric phthalocyanine, self-assembly, super-molecule, double helix, synthesis, UV-visible spectra
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