Journal
ANALYTICAL METHODS
Volume 10, Issue 9, Pages 983-990Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ay02779f
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Funding
- DST-INSPIRE, New Delhi [IFA12-CH-59]
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An antipyrine and naphthoic acid-based hybrid molecular architect was synthesized and its photophysical behavior towards various cations and anions was further investigated. Probe 1 was used for the selective estimation of Al3+ ions and signalled the binding event through the formation of a new absorption band at 405 nm and a turn-on' fluorescence band at 505 nm via the CHEF effect, and restricting the PET phenomenon with the lowest detection limit of 28 nM. Probe 1 demonstrated selective estimation of CN- and OH- ions among all other anions by forming a new absorption band at 400 nm and a fluorescence turn-on' at 520 nm with the lowest detection limit of 77 nM. Aluminium concentration of up to 7.4-8.6 ppm was also detected by probe 1 in sewage water. All the results were correlated by H-1 NMR titrations and theoretical studies.
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