Competitive binding of Ba2+ and Sr2+ to 18-Crown-6 in a Receptor with a 1-Methoxyanthraquinone Analogue as the Other Binding Site

被引：12

作者：

Banerjee, Tanmay ^{[2
]}

Suresh, Moorthy ^{[2
]}

Ghosh, Hirendra N. ^{[1
]}

Das, Amitava ^{[2
]}

机构：

[1] Bhabha Atom Res Ctr, Radiat & Photo Chem Div, Bombay 400085, Maharashtra, India

[2] Cent Salt & Marine Chem Res Inst, Analyt Sci Discipline, Bhavnagar 364002, Gujarat, India

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2011年 / 30期

关键词：

Sensors; Receptors; Crown compounds; Alkaline earth metals; Ruthenium; EARTH METAL-CATIONS; CROWN-ETHER; ION-BINDING; COMPLEXES; CALCIUM; STRONTIUM; FLUORESCENCE; RECOGNITION; RU(II); ANION;

D O I：

10.1002/ejic.201100472

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Owing to their immense biological significance, development of sensors for the selective detection of alkaline earth metal ions has attracted vast research interest. In this article we have reported the synthesis, characterisation and ion binding studies of a new Ru-II-polypyridyl-crown-anthraquinone complex (5). Studies confirm selective binding of Ba-II, Sr-II and Ca-II ions, with KBa2+ > KSr2+ >> KCa2+, over all other metal ions, to the crown ether moiety and not to the methoxy anthraquinone component, the latter being the second binding site available and known for its affinity towards alkaline earth metal ions from one of our previous reports.

引用

页码：4680 / 4690

页数：11

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