二甲胺基尾式卟啉的磁圆二色(MCD)研究  

Magnetic Circular Dichroism Studies of a New Tailed Porphyrin

作　　者：赵东源[1] 任继尧[1] 王起斌 曹锡章 

机构地区：[1]沈阳化工学院 [2]吉林大学

出　　处：《沈阳化工学院学报》1992年第2期111-116,共6页Journal of Shenyang Institute of Chemical Technolgy

摘　　要：本文测定了一种新型尾式卟啉[5-邻-(4-二甲胺基丁酰胺)苯基-10,15,20-三苯基卟啉](meso-MDMBPTPPH_2或简记 PH_2)及其单阳离子 PH_3^+、双阳离子 PH_4^(2+)和双阴防子 P^(2-)的磁圆二色(MCD)光谱,并与四苯基卟啉相比较,发现它们有正常的 MCD 符号(-+-+),并用“golden rules”理论模型解释了其原因;尾端叔胺与卟啉环 N—H 键可以产生氢键,改变了其能级,MCD 发生了变化.The magnetic circular dichroism of the monocation,dication,dianion and free-base forms of a new tailed porphyrin,meso-mono-[o-(4-dimethylaminobutylamido) phenyl] triphenyl porphine,was measured.The MCD bands have commonly exhibited the “normal”sign pattern of-+-+in order of increasing energy.Michle's perimeter mod- el is used to provide insight into structural effects which might lead to the condition of △HOMO△LUMO required to explain the sign inversion on a purely electronic basis. The QI band of meso-MDMBPTPPH_2 is split to two bands,this can be considered as the in- teraction of the Me_2N—of the tail with the N—H of porphine.

关 键 词：卟啉 磁圆二色 测定 配体 

分 类 号：TQ251.33[化学工程—有机化工]