Synthesis and solid-state structures of a macrocyclic receptor based on the 2,6-bis(2-anilinoethynyl) pyridine scaffold

被引：6

作者：

Engle, Jeffrey M. ^{[1
]}

Singh, Pushpinder S.

Vonnegut, Chris L.

Zakharov, Lev N.

Johnson, Darren W.

Haley, Michael M.

机构：

[1] Univ Oregon, Dept Chem & Biochem, Eugene, OR 97403 USA

来源：

CRYSTENGCOMM | 2014年 / 16卷 / 18期

基金：

美国国家卫生研究院;

关键词：

FLUORESCENT ANION SENSOR; CYCLIC POLYETHERS; AQUEOUS-SOLUTION; METAL-SALTS; RECOGNITION; COMPLEXES; SERIES; WATER; TUNE;

D O I：

10.1039/c3ce42307g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A fluorescent macrocyclic anion receptor based on the 2,6-bis(2-anilinoethynyl) pyridine scaffold has been synthesized to investigate the mechanism of fluorescence quenching in this class of compounds. X-ray crystallography reveals that the binding pocket of the receptor is a natural host to both H2O and HCl, accommodating either molecule in nearly identical environments. Our studies show that protonation, not collisional quenching, is responsible for the observed fluorescence quenching response.

引用

页码：3703 / 3706

页数：4

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