Fluorophore inserted bisbenzimidazole clefts in selective sensing of Ag+ and Cu2+ ions

被引：16
|
作者：
Panja, Santanu [1 ]
Debnath, Sudarshan [2 ]
Ghosh, Kumaresh [1 ]
机构：
[1] Univ Kalyani, Dept Chem, Kalyani 741235, W Bengal, India
[2] Syamsundar Coll, Dept Chem, Shyamsundar 713424, India
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2017年 / 348卷
关键词：
Bisbenzimidazole; Fluorometric detection; Cu2+ and Ag+ sensing; Quenching of emission; FLUORESCENT SENSOR; PROTON-TRANSFER; SOLID-STATE; DNA-BINDING; METAL-IONS; COMPLEXATION; CHEMOSENSOR; HG2+;
D O I：
10.1016/j.jphotochem.2017.08.024
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Anthracene and naphthalene tied bisbenzimidazoles 1 and 2 have been designed and synthesized. The conformational behaviour of the molecules has been rationalized by DFT calculations. While the bisbenzimidazole 1 shows selective sensing of Ag+ ions, under similar conditions the bisbenzimidazole 2 senses Cu2+ in DMSO-H2O (2:1, viv) by exhibiting turn-off emission. During metal ligand interaction the colors of the receptor solutions are significantly changed under UV-light and are promisingly useful in naked eye detection. Interaction features have been explained by spectroscopic techniques. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：110 / 117
页数：8
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