| 초록 |
The design and synthesis of anion receptors have gained much attention in molecular recognition chemistry since anions play significant roles in biology. Recently, the ability of thioureas to complex anions has been thoroughly exploited in the field of molecular sensors due to the binding anions through hydrogen bonding. The use of thiouronium groups has not been explored very much in the area of anion binding. Such groups would enhance the acidicity of the NH moieties and therefore can function as a better binder compared to the thiourea group. In this study, a novel fluorescent anion chemosensor based on bis-isothiouronium was synthesized. This sensor contained two isomers in equilibrium and showed significant fluorescence enhancement upon the addition of fluoride, acetate and dihydrogen phosphate anions. |
