Interaction of oligopyrrole macrocycles with aromatic acids:: spectroscopical, quantum chemical and chromatographic aspects

被引:1
|
作者
Tománková, Z [1 ]
Matejka, P [1 ]
Sykora, D [1 ]
Král, V [1 ]
机构
[1] Inst Chem Technol, Dept Analyt Chem, CR-16628 Prague 6, Czech Republic
关键词
HPLC; porphyrin; separation; interaction;
D O I
10.1016/S0039-9140(02)00637-9
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The study of the behavior of oligopyrrole macrocyclic compounds in solution and covalently bond on silica surface were carried out. For this purpose ultraviolet-visible titrations and chromatography measurements were employed. Interactions of porphyrin and sapphyrin with nitrobenzoic, aminobenzensulfonic, hydroxybenzoic and terephthalic acids were studied. The spectroscopic results were compared with quantum chemical calculations at semiempirical level and with the data obtained by HPLC measurements. Chromatographic data showed that interaction of the analytes with the metalled porphyrin and the sapphyrin core led to significant increase of retention factors of the aromatic acids and selectivity improvement of the separation. (C) 2003 Elsevier Science B.V. All rights reserved.
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页码:817 / 829
页数:13
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