Journal
TETRAHEDRON LETTERS
Volume 50, Issue 42, Pages 5808-5812Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2009.07.141
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- CSIR
- DST
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A new coumarin-based sensor molecule (L-1) has been synthesized and this was found to bind calcium and magnesium ions more effectively as compared to other alkali/alkaline earth/lanthanide and certain transition metal ions. A significant enhancement in fluorescence intensity was observed on binding to Ca2+ and Mg2+ ions; while a minor quenching was observed for weakly bound Hg2+, Ni2+, Fe3+, and Co2+ ions. PET process, coupled with the ICT process, is proposed to explain the observed spectral response. (C) 2009 Elsevier Ltd. All rights reserved.
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