Thiazole-based chemosensor III: synthesis and fluorescence sensing of CH3CO2 based on inhibition of ESIPT |
| |
Authors: | Aasif Helal |
| |
Institution: | Department of Applied Chemistry, Kyungpook National University, Daegu 702-701, Republic of Korea |
| |
Abstract: | Novel fluorogenic sensors based on urea derivative of 2-(2′-aminophenyl)-4-phenylthiazole (4 and 5) were prepared and used for recognition of anions with similar basicity and surface charge density. Chemosensor 4 was found to be highly selective to acetate ion over other anions. The selectivity was related to the structure matching between the host and the guest. The evaluation of the chemosensors’ interaction with anions was performed by UV-vis and fluorescence titration. This acetate binding affinity was further tuned by varying the acidity of the N-H proton of the urea moiety in chemosensor 5. |
| |
Keywords: | 2-(2&prime -Aminophenyl)thiazole Urea Fluorescence sensing Acetate anion ESIPT |
本文献已被 ScienceDirect 等数据库收录! |