Nik Ibrahim, Nik Muhd Jazli and Mohd Said, Suhana and Mainal, Azizah and Mohd Sabri, Mohd Faizul and Abdullah, Noorlidah and Hasnan, M. M. I. Megat and Mohd Amin, Mohd and Mohd Salleh, Mohd Faiz (2021) Investigation of iron(III) ionic structural complexes for seebeck coefficient enhancement using variation of ligand lengths with extended Pi-conjugated bipyridyl ligands. Journal of Molecular Structure, 1237. ISSN 0022-2860, DOI https://doi.org/10.1016/j.molstruc.2021.130202.
Full text not available from this repository.Abstract
Five new octahedral spin-crossover magnetic complexes with general formulae, Fe(LCn)(3)](BF4)(3), where L = ligand, and n = 8, 10, 12, 14, 16, were synthesized and characterized. The influence of different ligand lengths on the diffusion and Seebeck coefficient, and the effect of counterions were investigated. It was found that diffusion and Seebeck values were highly dependent on magnetic properties of the complexes and the agglomeration formed from the long ligand lengths. Hence, it was found that ionic complexes with higher percentage of low-spin have recorded the highest diffusion and Seebeck values due to the presence of N-donor ligand as an effective electron donor to the metal centre. Thus, it is easier to break the Coulombic interaction, consequently increase the ionic mobility in solution that accounted for the entropy formed. Therefore, these findings provide a systematic pathway in the designing and synthesising SCO complex to obtain optimum performance of thermo-electrochemical materials. (C) 2021 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Funders: | UM Grant-Frontier Research Grant [FG009-17AFR] [RK009-2018], Faculty research grants [GPF022A-2018] [GPF012A-2019] [GPF029A-2018], UM research grant [IIRG002A-19IISS], International grant (Nippon glass sheet grant) [IF009-2020], Fundamental Research Grant Scheme [FP064-2016] [FP062-2016] [RK006-2020] |
| Uncontrolled Keywords: | Spin-crossover; Thermo-electrochemical cell; Magnetic properties; Seebeck coefficient; Redox properties |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Faculty of Engineering > Department of Electrical Engineering Faculty of Engineering > Department of Mechanical Engineering Faculty of Science > Institute of Biological Sciences Faculty of Science > Department of Chemistry |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 27 Jun 2022 07:15 |
| Last Modified: | 27 Jun 2022 07:15 |
| URI: | http://eprints.um.edu.my/id/eprint/34005 |
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