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SYNTHESIS OF CHIRAL ZINC PORPHYRIN AND ITS THERMODYNAMIC STUDY OF COORDINATION REACTIONS WITH SUBSTITUTED IMIDAZOLES

Yan Shikai, Zhu Zhiang, Zhao Xiaojing, Yuan Wei, Li Ying, Wang Chuanzhong, Chen Rongti (Department of Chemistry,State Key Laboratory of Elemental Organic Chemistry,Nankai University,Tianjin,300071) Albert S.C.Chan (Department of Applied Biology & Chemi  
Started off with the normal chiral material, L (+) tartaric acid, a series of novel chiral Zinc(Ⅱ) porphyrin is prepared, and Elements analysis, NMR, Uv vis and Polarization analysis give the characterization. A thermodynamic study has been carried out for the axial coordination reactions between chiral porphyrin and some imidazole like ligands. Electronic implication is found to be an important factor in its thermodynamics, furthermore, with molecular mechanics method, MM2, and semi empirical method in Quantum Chemistry, AM1, configuration optimization and other calculation have been carried out on porphyrins and ligands, whose results are inline with the experiments.
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