Adimula, V. O and Tella, A.C. and Owalude, S. O. and Oladipo, A. C. and Olayemi, V. T. and Adeniyi, E. and Ismail, B. and Mumtaz, A. and Khan, A. S. Synthesis, characterization and catalytic studies of bimetallic heteronuclear complexes for the reduction of nitroaromatic compounds. Inorganic and nanometal chemistry.
Full text not available from this repository.Abstract
Four mixed-ligand complexes were prepared and formulated as [Ln(H2OBA)(H2PZDC)] and [Ln(H2OBA)(H2PDC)] {Ln = La & Gd; H2OBA = 4,4-oxybisbenzoic acid; H2PDC = 2,3-pyridinedicarboxylic acid; H2PZDC = 2,3-pyrazinedicarboxylic acid}. The complexes were modified by a nickel/cobalt impregnation method to generate bimetallic complexes 1–8. Fourier transform infrared (FTIR) spectroscopy analysis of the bimetallic complexes indicated that the carboxylate coordinated to the lanthanide ion via the OH- group while the Ni2+ and Co2+ ions were preferentially bonded to the nitrogen donor ligand via the N- group. Complete catalytic reduction of 4-nitrophenol to 4-aminophenol by the Ni@ complexes gave a maximum reduction time of 37 minutes for complex 1 while complex 7 gave a reduction time of 21 minutes. The rate constants were observed to increase with an increase in temperature up to 50 °C for complexes 3, 5, and 7.
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > QD Chemistry |
| Depositing User: | Mrs Adetola Oladipo |
| Date Deposited: | 15 Jan 2024 08:10 |
| Last Modified: | 15 Jan 2024 08:10 |
| URI: | https://eprints.lmu.edu.ng/id/eprint/5023 |
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