Physicochemical Investigation of HDDP Azomethine Dye as Turn-On Fluorescent Chemosensor for High Selectivity and Sensitivity of Al3+ Ions |
| |
Authors: | Abdullah M. Asiri Tariq R. Sobahi Mona Mohammad Al-Amari Mohammad Asad Mohie E. M. Zayed Salman A. Khan |
| |
Affiliation: | 1.Chemistry Department, Faculty of Science,King Abdulaziz University,Jeddah,Saudi Arabia;2.Center of Excellence for Advanced Materials Research (CEAMR),King Abdulaziz University,Jeddah,Saudi Arabia |
| |
Abstract: | 4-[(2-Hydroxy-naphthalen-1-ylmethylene)-amino]-1,5-dimethyl-2-phenyl-1,2-dihydro-pyrazol-3-one (HDDP) was synthesized by the reaction of 4-amino-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one with 2-hydroxy-l-naphthaldehyde. The structure was confirmed by the IR, 1H-NMR, 13C-NMR, and EI-MS spectra and elemental analysis. Physicochemical parameters of the HDDP such as extinction coefficient, oscillator strength, transition dipole moment, Stokes shift, and fluorescence quantum yield in different solvents were studied on the basis of polarities. The interactions of various metal ions with HDDP were also studied using steady state fluorescence measurements. The emission profile reveals that it acts as off–on type fluorescent chemosensor for selective and sensitive detection of Al3+ ions. Complexation stoichiometry and mechanism of enhancement were determined from a Benesi–Hildebrand plot. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|