Journal
JOURNAL OF FLUORESCENCE
Volume 22, Issue 1, Pages 443-450Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10895-011-0977-1
Keywords
Dual chemosensor; Rhodamine 6G; Fluorescence enhancement; Cations; Quantum chemical calculation
Funding
- DST, Govt. of India [SR/FT/CS-047/2008]
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An off-on rhodamine-based fluorescence probe for the selective signaling of Cu(II) and Fe(III) has been designed and synthesized. The optical properties of this compound have been investigated in acetonitrile-water (1:1) binary solution. Very interestingly, this compound showed sensitivity and selectivity towards Cu(II) during absorption process and towards Fe(III) during emission process. So this is a nice example of an excellent dual chemosensor for two biologically/physiologically very important transition metal ions using only the two very different techniques (absorption and emission); both cases displayed only intensity enhancement.
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