title: Condensation Product of Phenylalanine and Salicylaldehyde: Fluorescent Sensor for Zn(2.).
abstract: The condensation product of phenylalanine and salicylaldehyde (L) was synthesised and characterised which was found to be selective fluorescent "off-on" sensor for Zn(2+) ion with the detection limit 10(-5) M. The sensor is free of interferences from metal ions - Na(+), K(+), Al(3+), Mn(2+), Co(2+), Ni(2+), Cu(2+), Pb(2+), Cd(2+) and Hg(2+). The Fluorescence and the UV/visible spectral data reveals a 1:1 interaction between the sensor and Zn(2+) ion with binding constant 10(8). The DFT and TDDFT calculations confirm the structures of the sensor and the sensor-Zn(2+) complex.
authors.affiliation: Department of Chemistry, Gauhati University, Guwahati, 781014, Assam, India.
authors.forename: Smita
authors.initials: S
authors.lastname: Sarma
authors.affiliation: Department of Chemistry, Arya Vidyapeeth College, Guwahati, 781016, Assam, India.
authors.forename: Pradip Kr
authors.initials: PK
authors.lastname: Bhattacharyya
authors.affiliation: Department of Chemistry, Gauhati University, Guwahati, 781014, Assam, India. digkdas@yahoo.com.
authors.forename: Diganta Kumar
authors.initials: DK
authors.lastname: Das
keywords: DFT; Fluorescence; Phenylalanine; Sensor; TDDFT; Zinc