skchang@cau.ac.kr Received February 22, 2009, Accepted March 23, 2009 Two new chemosensors 1 and 2 derived from 5,12- and 5,7-dioxocyclams were prepared

• Published in: Bulletin of the Korean Chemical Society pp. 1093 - 1096
• Main Authors: Hye Lim Jeon, 최명길, 최종인, 장석규
• Format: Journal Article
• Language: English
• Published: 대한화학회 01.05.2009
• Subjects: 화학
• ISSN: 0253-2964; 1229-5949

Two new chemosensors 1 and 2 derived from 5,12- and 5,7-dioxocyclams were prepared and their signaling behaviors toward transition metal ions were investigated. Chemosensors 1 and 2 showed very efficient responses toward Cu2+ and Hg2+ ions. Ratiometric analysis of the fluorescence changes in pyrene monomer and excimer emissions clearly demonstrated the Cu2+- and Hg2+-selective signaling behavior. The signaling mechanism of the chemosensors is due to conformation changes upon complexation with metal ions and the inherent quenching nature of the complexed Cu2+ and Hg2+ ions themselves. KCI Citation Count: 4