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- ISSN: 1570-1786
- E-ISSN: 1875-6255
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Efficient Indole-Based Receptor for Cu2+ Ion
- Source: Letters in Organic Chemistry, Volume 8, Issue 9, Nov 2011, p. 648 - 651
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- 01 Nov 2011
Abstract
A new fluorescent sensor 1 was designed and synthesized through the condensation of indole-3-aldehyde and N-(2-hydroxyethyl)ethylenediamine. It exhibits good sensitivity and selectivity for the copper cation over other cations such as K+, Na+, Ca2+, Cr2+, Mg2+, Zn2+, Al3+ and Fe3+. The fluorescence intensity of the sensor was decreased with increasing the concentration of Cu2+. The analysis of the Benesi-Hildebrand equation indicated the formation 1:1 complex of 1 and Cu2+ with association constant Kass=3.34×105M.
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