Terpyridine functionalized α-cyanostilbene derivative as excellent fluorescence and naked eyes Fe2+ probe in aqueous environment

被引：11

作者：

He, Xuan ^{[1
]}

Zhang, Gao-Bin ^{[1
]}

Chi, Zi-Xin ^{[1
]}

Dai, Peng-Fei ^{[1
]}

Huang, Jian-Yan ^{[1
]}

Yang, Jia-Xiang ^{[1
]}

机构：

[1] Anhui Univ, Coll Chem & Chem Engn, Hefei 230601, Anhui, Peoples R China

来源：

CHEMICAL PAPERS | 2017年 / 71卷 / 11期

基金：

美国国家科学基金会;

关键词：

Terpyridine; Carbazole derivative; Fe2+ fluorescent probe; AGGREGATION-INDUCED EMISSION; SENSOR; IRON; IRON(III); IONS;

D O I：

10.1007/s11696-017-0214-8

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel carbazole derivative (L) functionalized by terpyridine was designed and synthesized. Its structure was fully characterized by FT-IR, HR-MS, H-1 NMR spectra. L formed J-aggregates and possessed aggregation-induced emission enhancement property in aqueous environment. In addition, compound L showed specific response to Fe2+ in UV-vis spectra at 557 nm in EtOH-H2O mixed solvent, owing to metal-to-ligand-charge-transfer (MLCT). The emission quenched much more sharply than other metal ions when adding Fe2+. The interaction between compound L and Fe2+ was analyzed by UV-vis and fluorescence spectrum titration. The limit of detection was calculated to be 1.63 mu M. The stoichiometric of L and Fe2+ was 2:1 confirmed by Job's plots. Competition experiment indicated that other metal ions caused little interference. In this way, L could be a fluorescent and "naked eyes" probe for Fe2+ detection. This dual mode Fe2+ sensor can be considered to have potential value in practical applications.

引用

页码：2209 / 2215

页数：7

共 48 条

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