苯丙氨酸桥联金属双卟啉的诱导圆二色光谱研究  

The Study of Induced Circular Dichroism of Phenylalanine Bridged Metal Bis-porphyrin

作　　者：刘海洋[1] 应晓 胡希明[1] 刘义 黄剑[1] 黄锦汪[2] 计亮年[2] 姚钟平[3] 张建春 

机构地区：[1]华南理工大学应用化学系 [2]中山大学化学系,广州510275 [3]香港科技大学化学系 [4]广东番禺市公安局,番禺511400

出　　处：《光谱学与光谱分析》2000年第4期495-497,共3页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金!(29771034);广东省自然科学基金!(960291; 984041)

摘　　要：本文报道了邻位和对位桥联苯丙氨酸锌双卟啉的合成 ,考查了双卟啉的分子结构对诱导圆二色性的影响。结果表明 ,两个卟啉环之间的π π堆积和手性激子偶合作用是影响此类双卟啉圆二色光谱的主要因素。L and D phenylalanine bridged zinc bis porphyrin with the connecting chain at ortho and para position of two phenyl rings [o,o C 2 Phe C 2 (TPP) 2Zn 2 and p,p C 2 Phe C 2 (TPP) 2Zn 2] have been synthesized and characterized.o,o C 2 Phe C 2 (TPP) 2Zn 2 exhibited strong induced circular dichroism (ICD).While p,p C 2 Phe C 2 (TPP) 2Zn 2 exhibited no significant ICD.The ICD of present complexes were mainly determined by the π π interaction and chiral exciton coupling between two porphyrin moieties of the molecules.Our results also indicated that the existence of chiral center in a porphyrin molecule does not mean it would surely exhibit ICD.

关 键 词：诱导圆二色光谱 苯丙氨酸桥联金属双卟啉 合成 

分 类 号：O626.13[理学—有机化学]