Cyclo[2]benzimidazole: luminescence turn-on sensing of anions

被引：33

作者：

Abraham, Yael ^{[1
]}

Salman, Husein ^{[1
]}

Suwinska, Kinga ^{[2
]}

Eichen, Yoav ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Schulich Fac Chem, IL-32000 Haifa, Israel

[2] Polish Acad Sci, PL-01224 Warsaw, Poland

来源：

CHEMICAL COMMUNICATIONS | 2011年 / 47卷 / 21期

关键词：

INTRAMOLECULAR PROTON-TRANSFER; FLUORESCENT CHEMOSENSOR; ALKYLATING-AGENTS; RECOGNITION; SENSORS; IDENTIFICATION; RECEPTORS; MOLECULES; EMISSION; BINDING;

D O I：

10.1039/c1cc10995b

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Cyclo[2]benzimidazole is a new host for anions that turns on its luminescence up to 150 fold upon binding. Photoexcited cyclo[2]benzimidazole undergoes an efficient non-radiative deactivation through an excited-state intramolecular proton-transfer (ESIPT) mechanism. Upon binding an anion, the ESIPT pathway is blocked, resulting in an increase in the luminescence efficiency.

引用

页码：6087 / 6089

页数：3

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