Off-on florescent sensor based on the bis( 2,4,7,8,9-pentamethyldipyrrolylmethene-3-yl) methane for detection of Cd2+ and Hg2+ cations

被引：23

作者：

Bumagina, Natalia A. ^{[1
]}

Antina, Elena V. ^{[1
]}

Sozonov, Dmitry I. ^{[2
]}

机构：

[1] Russian Acad Sci, GA Krestov Inst Solut Chem, ISC, 1 Akad Skaya St, Ivanovo 153045, Russia

[2] Ivanovo State Univ Chem & Technol, 7 Sheremetevskij Prosp, Ivanovo 153000, Russia

来源：

JOURNAL OF LUMINESCENCE | 2017年 / 183卷

关键词：

Bis(dipyrrin); Fluorescent sensor; Cd2+ ions; Hg2+ ions; Selectivity; Detection limit; SPECTRAL PROPERTIES; FLUORESCENT SENSOR; ZN2+ PROBES; LIVING CELL; ZINC IONS; D-METALS; COMPLEXES; 3,3'-BIS(DIPYRROLYLMETHENES); DIPYRROMETHANES; RECOGNITION;

D O I：

10.1016/j.jlumin.2016.11.057

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The off-on fluorescent chemosensor based on the bis(2,4,7,8,9-pentamethyldipyrrolylmethene-3-yl)methane for detection of Cd2+ and Hg2+ ions was obtained and its metal ion sensing properties were investigated. The bis(dipyrrin) exhibited remarkably fluorescence enhancement (150- and 40-fold) to Cd2+ and Hg2+ ions, respectively, with significant color change on the background of other metal ions in propanol-1/cyclohexane (1:30) binary mixture. Consequently, it can be used as a naked eye indicator with an obvious color change from yellow-orange to orange-green color upon the addition of Cd2+ and Hg2+. The fluorescent response mechanism of bis(dipyrrin) to Cd2+ and Hg2+ was based on the fluorescence enhancement effect upon complexation (CHEF) due to formation of a metalligand (2:2) complex [M2L2]. The detection limit of Cd2+ and Hg2+ ions was 2 x 10(9) and 1.7 x 10(8) M ions, respectively. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：315 / 321

页数：7

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