title: 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.
authors.affiliation: Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, 32000 Haifa, Israel.
authors.forename: Yael
authors.initials: Y
authors.lastname: Abraham
authors.forename: Husein
authors.initials: H
authors.lastname: Salman
authors.forename: Kinga
authors.initials: K
authors.lastname: Suwinska
authors.forename: Yoav
authors.initials: Y
authors.lastname: Eichen