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Literature DB >> 28233249

Highly Sensitive and Selective Turn-on Fluorescent Probe for Hg²⁺ Based on Rhodamine 6G-Thiourea Conjugate.

Ying-Zi Ding¹, Hui-Li Gong², Kun-Peng Wang³.

Abstract

An easily available novel fluorescent probe based on rhodamine 6G-thiourea conjugate (RGTU) has been synthesized. Upon mixed with Hg2+ in CH3CN-H2O (1:9, v/v), the dramatic enhancement of fluorescence intensity as well as the color change of the solution were observed. The presence of common coexisting alkali, alkaline earth, and transition metal ions showed small or no interference with the detection of Hg2+. The Job's plot and 1H NMR spectra indicated that Hg2+ induced spirolactam open to form 1:1 complex between RGTU and Hg2+.

Entities: Chemical

Keywords: Fluorescent probe; Hg2+; Rhodamine-6G derivative; Spirolactam opening

Year: 2017 PMID： 28233249 DOI： 10.1007/s10895-017-2044-z

Source DB: PubMed Journal: J Fluoresc ISSN： 1053-0509 Impact factor: 2.217

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References

26 in total

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Authors: Zhi-Qiang Hu; Xiao-Ming Wang; Yong-Cheng Feng; Lei Ding; Ming Li; Cun-Sheng Lin
Journal: Chem Commun (Camb) Date: 2010-11-26 Impact factor: 6.222

Highly Sensitive and Selective Turn-on Fluorescent Probe for Hg²⁺ Based on Rhodamine 6G-Thiourea Conjugate.

Review 1. Fluorescent chemosensors based on spiroring-opening of xanthenes and related derivatives.

2. Turn-on fluorescent sensor for selective detection of Zn(2+), Cd(2+), and Hg(2+) in water.

3. Highly sensitive and selective turn-on fluorescent chemosensor for Pb2+ and Hg2+ based on a rhodamine-phenylurea conjugate.

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10. A novel colorimetric and fluorescent chemosensor for acetate ions in aqueous media based on a rhodamine 6G-phenylurea conjugate in the presence of Fe(III) ions.