Abstract
The condensation product of phenylalanine and salicylaldehyde (L) was synthesised and characterised which was found to be selective fluorescent “off-on” sensor for Zn2+ ion with the detection limit 10−5 M. The sensor is free of interferences from metal ions - Na+, K+, Al3+, Mn2+, Co2+, Ni2+, Cu2+, Pb2+, Cd2+ and Hg2+. The Fluorescence and the UV/visible spectral data reveals a 1:1 interaction between the sensor and Zn2+ ion with binding constant 108. The DFT and TDDFT calculations confirm the structures of the sensor and the sensor-Zn2+ complex.
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DST, New Delhi and UGC, New Delhi are thanked for financial support to the department through FIST-II and SAP respectively. SS thanks UGC for fellowship under BSR scheme.
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Sarma, S., Bhattacharyya, P.K. & Das, D.K. Condensation Product of Phenylalanine and Salicylaldehyde: Fluorescent Sensor for Zn2+ . J Fluoresc 26, 899–904 (2016). https://doi.org/10.1007/s10895-016-1778-3
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DOI: https://doi.org/10.1007/s10895-016-1778-3