Catalytic oxidation of cyclohexane using transition metal complexes of dithiocarbazate schiff base
Metal complexes of dithiocarbazate Schiff bases (abbreviated as NiSMdiAP, CoSMdiAP, FeSMdiAP, MnSMdiAP and ZnSMdiAP, where SMdiAP represents the Schiff base) were synthesized and characterized using techniques including Fourier transform infrared spectroscopy, nuclear magnetic resonance, 1H NMR, 13C...
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| Format: | Article |
| Language: | English |
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Elsevier
2017
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| Online Access: | http://psasir.upm.edu.my/id/eprint/61060/1/Catalytic%20oxidation%20of%20cyclohexane%20using%20transition%20metal%20complexes%20of%20dithiocarbazate%20schiff%20base.pdf |
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| author | Alshaheri, Ali Ahmed Mohamed Tahir, Mohamed Ibrahim Abdul Rahman, Mohd Basyaruddin Ravoof, Thahira Begum S. A. Saleh, Tawfik A. |
| author_facet | Alshaheri, Ali Ahmed Mohamed Tahir, Mohamed Ibrahim Abdul Rahman, Mohd Basyaruddin Ravoof, Thahira Begum S. A. Saleh, Tawfik A. |
| author_sort | Alshaheri, Ali Ahmed |
| collection | UPM |
| description | Metal complexes of dithiocarbazate Schiff bases (abbreviated as NiSMdiAP, CoSMdiAP, FeSMdiAP, MnSMdiAP and ZnSMdiAP, where SMdiAP represents the Schiff base) were synthesized and characterized using techniques including Fourier transform infrared spectroscopy, nuclear magnetic resonance, 1H NMR, 13C NMR, magnetic susceptibility measurements, molar conductivity, ultraviolet–visible spectroscopy, and inductively coupled plasma-optical emission spectrometry. The study focused on the oxidation of cyclohexane by using the metal complexes as catalysts with hydrogen peroxide as the oxidative source under special conditions. These catalysts showed good conversion and high selectivity compared to other Schiff base complexes. The conditions of the oxidation reaction catalysed by these complexes were investigated. Gas chromatography was used to analyse the products of the oxidation reaction of cyclohexane and it showed that cyclohexanol and cyclohexanone are the main products. A copper complex of Schiff base formed from 2,6-diacetyl pyridine and S-methyldithiocarbazate, [CuIISMdiAP] showed the highest level of activity during the screening studies towards cyclohexane oxidation. The time of reaction, temperature, and the concentration of H2O2 as an environmentally friendly oxidant and the catalyst type played an important role in the selectivity and conversion of cyclohexane oxidation. The selectivity of the reaction was 98%. |
| first_indexed | 2024-03-06T09:39:34Z |
| format | Article |
| id | upm.eprints-61060 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:39:34Z |
| publishDate | 2017 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-610602018-09-24T02:22:05Z http://psasir.upm.edu.my/id/eprint/61060/ Catalytic oxidation of cyclohexane using transition metal complexes of dithiocarbazate schiff base Alshaheri, Ali Ahmed Mohamed Tahir, Mohamed Ibrahim Abdul Rahman, Mohd Basyaruddin Ravoof, Thahira Begum S. A. Saleh, Tawfik A. Metal complexes of dithiocarbazate Schiff bases (abbreviated as NiSMdiAP, CoSMdiAP, FeSMdiAP, MnSMdiAP and ZnSMdiAP, where SMdiAP represents the Schiff base) were synthesized and characterized using techniques including Fourier transform infrared spectroscopy, nuclear magnetic resonance, 1H NMR, 13C NMR, magnetic susceptibility measurements, molar conductivity, ultraviolet–visible spectroscopy, and inductively coupled plasma-optical emission spectrometry. The study focused on the oxidation of cyclohexane by using the metal complexes as catalysts with hydrogen peroxide as the oxidative source under special conditions. These catalysts showed good conversion and high selectivity compared to other Schiff base complexes. The conditions of the oxidation reaction catalysed by these complexes were investigated. Gas chromatography was used to analyse the products of the oxidation reaction of cyclohexane and it showed that cyclohexanol and cyclohexanone are the main products. A copper complex of Schiff base formed from 2,6-diacetyl pyridine and S-methyldithiocarbazate, [CuIISMdiAP] showed the highest level of activity during the screening studies towards cyclohexane oxidation. The time of reaction, temperature, and the concentration of H2O2 as an environmentally friendly oxidant and the catalyst type played an important role in the selectivity and conversion of cyclohexane oxidation. The selectivity of the reaction was 98%. Elsevier 2017 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/61060/1/Catalytic%20oxidation%20of%20cyclohexane%20using%20transition%20metal%20complexes%20of%20dithiocarbazate%20schiff%20base.pdf Alshaheri, Ali Ahmed and Mohamed Tahir, Mohamed Ibrahim and Abdul Rahman, Mohd Basyaruddin and Ravoof, Thahira Begum S. A. and Saleh, Tawfik A. (2017) Catalytic oxidation of cyclohexane using transition metal complexes of dithiocarbazate schiff base. Chemical Engineering Journal, 327. pp. 423-430. ISSN 1385-8947; ESSN: 1873-3212 10.1016/j.cej.2017.06.116 |
| spellingShingle | Alshaheri, Ali Ahmed Mohamed Tahir, Mohamed Ibrahim Abdul Rahman, Mohd Basyaruddin Ravoof, Thahira Begum S. A. Saleh, Tawfik A. Catalytic oxidation of cyclohexane using transition metal complexes of dithiocarbazate schiff base |
| title | Catalytic oxidation of cyclohexane using transition metal complexes of dithiocarbazate schiff base |
| title_full | Catalytic oxidation of cyclohexane using transition metal complexes of dithiocarbazate schiff base |
| title_fullStr | Catalytic oxidation of cyclohexane using transition metal complexes of dithiocarbazate schiff base |
| title_full_unstemmed | Catalytic oxidation of cyclohexane using transition metal complexes of dithiocarbazate schiff base |
| title_short | Catalytic oxidation of cyclohexane using transition metal complexes of dithiocarbazate schiff base |
| title_sort | catalytic oxidation of cyclohexane using transition metal complexes of dithiocarbazate schiff base |
| url | http://psasir.upm.edu.my/id/eprint/61060/1/Catalytic%20oxidation%20of%20cyclohexane%20using%20transition%20metal%20complexes%20of%20dithiocarbazate%20schiff%20base.pdf |
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