Journal
TETRAHEDRON LETTERS
Volume 54, Issue 50, Pages 6892-6896Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2013.10.033
Keywords
Sensor; Colorimetric and fluorometric; Zn2+; HSO4-; DFT
Categories
Funding
- CSIR
- DST, Government of India
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In this Letter, we have designed and synthesized two salicylaldehyde based probes (DPSH and ANSH) which selectively detect Zn2+ and HSO4- over other physiologically and environmentally important ions with a fluorescence enhancement at two different wavelengths in aqueous acetonitrile solution. The binding mode and change of electronic properties of DPSH and ANSH with Zn2+ and HSO4- were modeled by DFT (density functional theory) and TDDFT (time dependent density functional theory) computational calculations, respectively. The minimum limits of detection (LOD) of the sensors with both cases were in the order of 10(-8) M each.
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