Molecular recognition of amino acid esters by porphyrinatozinc(II): observation of a new binding mode

被引：28
作者：
Peng, XB [1 ]
Huang, JW [1 ]
Li, T [1 ]
Ji, LN [1 ]
机构：
[1] Zhongshan Univ, Dept Chem, Guangzhou 510275, Peoples R China
来源：
INORGANICA CHIMICA ACTA | 2000年 / 305卷 / 02期
关键词：
molecular recognition; porphyrinatozinc(II); amino acid ester; binding mode;
D O I：
10.1016/S0020-1693(00)00121-3
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Molecular recognition of amino acid ethyl esters (guest) by 5 (2-carboxylphenyl)- 10,15,20-triphenylporphyrinatozinc(II) (host 1) was investigated using UV-Vis spectrophotometric titration method. The host-guest binding mode was studied by H-1 NMR and it was found that the carbonyl group of the guest coordinates to the Zn atom of host 1 and the amino group of the guest forms hydrogen-bonding with the carboxyl group of host 1. This is a new type of binding mode which had not been observed for previous metalloporphyrin-amino acid ester recognition systems. (C) 2000 Elsevier Science S.A. All rights reserved.
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页码：111 / 117
页数：7
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