Said, Nur Rahimah and Rezayi, Majid and Manan, Ninie Suhana Abdul and Sahebkar, Amirhossein and Alias, Yatimah (2022) Analysis of complexation between new bidentate bis-NHC ligand and some metal cations at different temperature. Analytical Methods in Environmental Chemistry Journal, 5 (2). 5 – 23. ISSN 26455552, DOI https://doi.org/10.24200/amecj.v5.i02.169.
Full text not available from this repository.Abstract
In this research, the determination and complexation process between 3,3’-(2,2’-(4-methyl-phenylenesulfonamido)bis(ethane-2,1-diyl)) bis(1-benzyl-3H-benzodimidazol-1-ium)dibromide with Ni2+, Zn2+, Pd2+, Ag+, and Hg2+ cations in the binary mixture of methanol (MeOH) and water (H2 O) at different temperatures (15, 25, 35 and 45ºC) were studied using a conductometric method. The results show that the stoichiometry of the complexes in all binary mixed solvents for Ni2+, Zn2+, and Pd2+ were 1:1 (M:L), while in other cases 1:2 (M:L) and 2:1(M:L). The stability constants (log) of complex formation have been determined by fitting molar conductivity curves using a computer program (GENPLOT). The obtained data shows that in the pure methanol solvent system, the stability order is Ni2+< Pd2+<Zn2+<Hg2+<Ag+ and the complexation process seems more stable in pure methanol in most cases. The thermodynamic parameters ο ο ο (∆GC, ∆H C, ∆S C) were determined conductometrically. The complexes in all cases were found to be enthalpy destabilized but entropy stabilized. The experimental data was tested by using an artificial neural network (ANN) program and was in good agreement with the estimated data. © 2022, AMEC Publisher. All rights reserved.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Additional Information: | Cited by: 0; All Open Access, Hybrid Gold Open Access |
| Uncontrolled Keywords: | Analysis; Binary mixed solvent; Complexation process; Conductometric method; Ligand; Thermodynamic parameters |
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
| Divisions: | Faculty of Science Faculty of Science > Department of Chemistry |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 14 Nov 2024 07:34 |
| Last Modified: | 14 Nov 2024 07:34 |
| URI: | http://eprints.um.edu.my/id/eprint/43776 |
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