Study on synthesis and fluorescence property of rhodamine-naphthalene conjugate

Jing-Can Qin; Zhen-Hai Fu; Li-Mei Tian; Zheng-Yin Yang

doi:10.1016/j.saa.2019.117868

Study on synthesis and fluorescence property of rhodamine-naphthalene conjugate

Spectrochim Acta A Mol Biomol Spectrosc. 2020 Mar 15:229:117868. doi: 10.1016/j.saa.2019.117868. Epub 2019 Nov 28.

Authors

Jing-Can Qin¹, Zhen-Hai Fu², Li-Mei Tian¹, Zheng-Yin Yang³

Affiliations

¹ College of Chemistry and Chemical Engineering, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China.
² Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, People's Republic of China; Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province, Xining 810008, People's Republic of China.
³ College of Chemistry and Chemical Engineering, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People's Republic of China. Electronic address: yangzy@lzu.edu.cn.

PMID: 31813722
DOI: 10.1016/j.saa.2019.117868

Abstract

In this study, a novel ligand (HL) consisting of 2-methyl quinoline-4-carboxylic acid, rhodamine and naphthalene moiety, was designed and synthesized, it could be developed a ratiometric fluorescent sensor for selective detection of Al³⁺ via fluorescence resonance energy transfer (FRET) from naphthalimide moiety to rhodamine moiety. The addition of Al³⁺ trigger the significant fluorescence enhancement of HL at 550 nm at the expense of the fluorescent emission of HL centered at 524 nm.

Keywords: Al(3+); FRET; Fluorescent sensor; Ratiometric; Rhodamine/naphthalene.