Issue 21, 2011

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

Abstract

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.

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

Supplementary files

Article information

Article type
Communication
Submitted
20 fev 2011
Accepted
17 mar 2011
First published
05 abr 2011

Chem. Commun., 2011,47, 6087-6089

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

Y. Abraham, H. Salman, K. Suwinska and Y. Eichen, Chem. Commun., 2011, 47, 6087 DOI: 10.1039/C1CC10995B

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