The First Bifluoride Sensor Based on Fluorescent Enhancement |
| |
| Authors: | Kaku Dutta Ramesh Ch. Deka Diganta Kumar Das |
| |
| Affiliation: | 1. Department of Chemistry, Gauhati University, Guwahati, 781014,, Assam, India
2. Department of Chemical Sciences, Tezpur University, Napam, Tezpur, Assam, India
|
| |
| Abstract: | The first fluorescent sensor for HF2 ? anion, N1, N3-di(naphthalene-1-yl)isophthalamide (L) has been derived from α-Napthylamine and isopthaloyl chloride. In 1:1 (v/v) DMSO:H2O, L exhibits high selectivity towards HF2 ? anion with a 4-fold enhancement in fluorescent intensity. Very little enhancement in fluorescence intensity is observed for F?, Cl?, Br?, I?, SCN?, PO4 3?, SO4 2?, and CH3COO? anions. The stoichiometry interaction between L and HF2 ? is found to be 1:1 from fluorescence and UV/Visible spectral data. DFT calculation shows that binding between HF2 ? and L is 1:1 and increases the relative planarity between the two naphthyl rings causing fluorescence enhancement. A shift of 0.080 V in oxidation potential of L is observed on interaction with HF2 ? by cyclic voltammetry and square wave voltammetry. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
