Competitive binding of Ba2+and Sr2+ to 18-crown-6 in a receptor with a 1-methoxyanthraquinone analogue as the other binding site

Banerjee, Tanmay, Suresh, Moorthy, Ghosh, Hirendra N. and Das, Amitava (2011) Competitive binding of Ba2+and Sr2+ to 18-crown-6 in a receptor with a 1-methoxyanthraquinone analogue as the other binding site. European Journal of Inorganic Chemistry, 30: 4680-4690. doi:10.1002/ejic.201100472


Author Banerjee, Tanmay
Suresh, Moorthy
Ghosh, Hirendra N.
Das, Amitava
Title Competitive binding of Ba2+and Sr2+ to 18-crown-6 in a receptor with a 1-methoxyanthraquinone analogue as the other binding site
Journal name European Journal of Inorganic Chemistry   Check publisher's open access policy
ISSN 1434-1948
1099-0682
Publication date 2011
Year available 2011
Sub-type Article (original research)
DOI 10.1002/ejic.201100472
Open Access Status
Issue 30
Start page 4680
End page 4690
Total pages 11
Place of publication Chichester, West Sussex, United Kingdom
Publisher Wiley - V C H Verlag GmbH & Co. KGaA
Collection year 2012
Language eng
Subject 1604 Human Geography
Abstract 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 RuII-polypyridyl-crown-anthraquinone complex (5). Studies confirm selective binding of BaII, Sr II and CaII ions, with KâBaâ2+ > KâSrâ2+ >> KâCaâ2+, 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. A new RuII-polypyridyl complex with two probable binding sites for metal ions has been synthesised to which Ca2+, Sr2+ and Ba2+ were found to bind selectively over all other alkali, alkaline earth, transition and lanthanide metal ions. Studies also confirmed binding of these metal ions solely to the 18-crown-6 and not to the methoxyanthraquinone moiety known to bind alkaline earth metal ions. Copyright
Keyword Alkaline earth metals
Crown compounds
Receptors
Ruthenium
Sensors
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemistry and Molecular Biosciences
 
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Created: Mon, 11 Aug 2014, 15:24:00 EST by Cathy Fouhy on behalf of School of Chemistry & Molecular Biosciences