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
收藏
页码：1537 / 1542
页数：6
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