Role of the conformational changes brought in the arms of the 1,3-di-capped conjugate of calix[4]arene (L) in turning on the fluorescence of L by Hg2+

Anilkumar Bandela; Jugun Prakash Chinta; Chebrolu P. Rao

doi:10.1039/C1DT11208B

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Role of the conformational changes brought in the arms of the 1,3-di-capped conjugate of calix[4]arene (L) in turning on the fluorescence of L by Hg²⁺†

Anilkumar Bandela,^a Jugun Prakash Chinta^a and Chebrolu P. Rao*^a

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* Corresponding authors

^a Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, India
E-mail: cprao@iitb.ac.in
Fax: 91-22-25767162

Abstract

A new 1,3-di-capped calix[4]arene conjugate of salicylidene (L) has been synthesized, characterized and the structure has been established by single crystal XRD. L shows selectivity towards Hg²⁺ in ethanol by turn-on fluorescence among the biologically important metal ions studied. The species of recognition has been modeled by DFT computational calculations to result in conformational changes in the arms that support the turn-on fluorescence behaviour.

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Article information

DOI: https://doi.org/10.1039/C1DT11208B
Article type: Communication
Submitted: 25 Jun 2011
Accepted: 09 Sep 2011
First published: 26 Sep 2011

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Dalton Trans., 2011,40, 11367-11370

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Role of the conformational changes brought in the arms of the 1,3-di-capped conjugate of calix[4]arene (L) in turning on the fluorescence of L by Hg²⁺

A. Bandela, J. P. Chinta and C. P. Rao, Dalton Trans., 2011, 40, 11367 DOI: 10.1039/C1DT11208B

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Dalton Transactions