水溶性四(p-磺酸钠苯基)金属卟啉配合物的合成、光谱性质及催化三氯苯酚的氧化脱氯反应

通过四苯基卟啉(H2TPP)和浓硫酸发生磺化反应及其金属化, 控制反应体系pH并利用透析法纯化, 高效合成了水溶性四(对磺酸钠苯基)卟啉(H2TPPS)及其金属配合物(FeTPPS和ZnTPPS); 采用UV-Vis、荧光、1H NMR和FTIR等光谱手段表征及研究了水溶性卟啉的结构及性质. 结果表明, 磺酸根离子的存在增强了卟啉分子间的π-π作用, 从而使H2TPPS及其金属配合物的分子间聚合作用增强. 研究了FeTPPS对2,4,6-三氯苯酚(TCP)催化氧化脱氯反应, 结果表明, FeTPPS/H2O2催化体系对TCP具备很好的催化氧化脱氯性能, 2,6-二氯对苯醌的转化数达到了766.

Synthesis, Spectral Properties and Catalytic Oxidative Dechlorination of 2,4,6-Trichlorophenol of Water-soluble Tetra-(p-Sulfophenyl)porphyrin and Its Metalloporphyrin Complex

Water-soluble porphyrin, tetra-(p-sulfophenyl)porphyrin(H2TPPS), and its metalloporphyrin complex(FeTPPS and ZnTPPS) were synthesized and characterized. The pH control for the reaction system and the use of dialytic bag can efficiently increase the yield and purity of the product. The structural traits and spectral properties were discussed by means of UV-Vis, fluorescence, 1H NMR and FTIR spectroscopic methods. The results show that the existence of the sulfonic groups enhances the intermolecular π-π interaction and the aggregation of the porphyrins. FeTPPS was used as catalyst in 2,4,6-trichlorophenol oxidative dechlorination in the presence of H2O2 as oxidant, FeTPPS/H2O2 system was proved to be an efficient catalysis system and 766 turnover numbers was obtained.