A New Fluorescent "Off-On" Sensor for Al3+ Derived from L-alanine and Salicylaldehyde

被引：13

作者：

Sarma, Smita ^{[1
]}

Bhattacharyya, Pradip Kr. ^{[2
]}

Das, Diganta Kumar ^{[1
]}

机构：

[1] Gauhati Univ, Dept Chem, Gauhati 781014, Assam, India

[2] Arya Vidyapeeth Coll, Dept Chem, Gauhati 781016, Assam, India

来源：

JOURNAL OF FLUORESCENCE | 2015年 / 25卷 / 05期

关键词：

Fluorescence; Sensor; Aluminium; L-alanine; Salicylaldehyde; TDDFT; DENSITY-FUNCTIONAL THEORY; EXCITATION-ENERGIES; ALUMINUM; APPROXIMATION; CHEMOSENSOR; AL(III); ION;

D O I：

10.1007/s10895-015-1647-5

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The condensation product of L-alanine and salicylaldehyde was synthesised and characterised which was found to be selective fluorescent "on" sensor for Al3+ ion with the detection limit 10(-6) M. The sensor is free of interferences from metal ions - Na+, K+, Ca2+, Mn2+, Co2+, Ni2+, Cu2+, Pb2+, Cd2+, Hg2+ and Fe3+. The Fluorescence and the UV/visible spectral data reveals a 1:1 interaction between the sensor and Al3+ ion with binding constant 10(4.5). The DFT and TDDFT calculations confirm the structures of the sensor and the sensor-Al3+ complex.

引用

页码：1537 / 1542

页数：6

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