Palladium complexes bearing bis-aldimine N^C^N and N^N^N pincer ligands; A study of homogeneous/heterogeneous catalyzed CO2 hydrogenation
Widespread consumption of fossil resources yielding waste CO2 has reached an all-time high and this poses an environmental threat that is contributing to global warming and climate change. Using CO2 as a C1 source may serve as an avenue to convert waste to valuable platform chemicals such as forma...
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| Format: | research article |
| Language: | English |
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Elsevier
2022
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| Online Access: | https://cris.library.msu.ac.zw//handle/11408/5289 https://doi.org/10.1016/j.ica.2022.121207 |
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| author | Nonkululeko Miya Nyasha Makuve Edward Ocansey Gift Mehlana James Darkwa Banothile C.E. Makhubela |
| author2 | Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg |
| author_facet | Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg Nonkululeko Miya Nyasha Makuve Edward Ocansey Gift Mehlana James Darkwa Banothile C.E. Makhubela |
| author_sort | Nonkululeko Miya |
| collection | DSpace |
| description | Widespread consumption of fossil resources yielding waste CO2 has reached an all-time high and this poses an
environmental threat that is contributing to global warming and climate change. Using CO2 as a C1 source may
serve as an avenue to convert waste to valuable platform chemicals such as formates. In this contribution, we
report on the design and synthesis of new pincer Pd(II) N^C^N and N^N^N complexes. Herein, we investigate the
role of an N^C^N or N^N^N ligand backbone in Pd(II) pre-catalysts and the corresponding catalytic activity in CO2
hydrogenation. Catalytic activity and selectivity with TON (turnover number) up to 537, in a THF/H2O biphasic
(affording catalyst separation) system, was achieved. The CO2-to-CH3OH conversion sequence in the presence of
an amine using these Pd pincer catalysts is also investigated. |
| format | research article |
| id | ir-11408-5289 |
| institution | My University |
| language | English |
| publishDate | 2022 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | ir-11408-52892022-12-16T09:41:33Z Palladium complexes bearing bis-aldimine N^C^N and N^N^N pincer ligands; A study of homogeneous/heterogeneous catalyzed CO2 hydrogenation Nonkululeko Miya Nyasha Makuve Edward Ocansey Gift Mehlana James Darkwa Banothile C.E. Makhubela Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg Department of Chemical Technology, Faculty of Science and Technology, Midlands State University, Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg; Department of Natural Resources and Materials, Botswana Institute of Technology Research and Innovation, Research Centre for Synthesis and Catalysis, Department of Chemical Sciences, University of Johannesburg; Department of Natural Resources and Materials, Botswana Institute of Technology Research and Innovation, Imine Pd pincer complexes CO2 hydrogenation Homogenous catalysis Widespread consumption of fossil resources yielding waste CO2 has reached an all-time high and this poses an environmental threat that is contributing to global warming and climate change. Using CO2 as a C1 source may serve as an avenue to convert waste to valuable platform chemicals such as formates. In this contribution, we report on the design and synthesis of new pincer Pd(II) N^C^N and N^N^N complexes. Herein, we investigate the role of an N^C^N or N^N^N ligand backbone in Pd(II) pre-catalysts and the corresponding catalytic activity in CO2 hydrogenation. Catalytic activity and selectivity with TON (turnover number) up to 537, in a THF/H2O biphasic (affording catalyst separation) system, was achieved. The CO2-to-CH3OH conversion sequence in the presence of an amine using these Pd pincer catalysts is also investigated. 545 (2023) 1 11 2022-12-16T09:41:33Z 2022-12-16T09:41:33Z 2022-09-19 research article https://cris.library.msu.ac.zw//handle/11408/5289 https://doi.org/10.1016/j.ica.2022.121207 en Inorganica Chimica Acta 0020-1693 open Elsevier |
| spellingShingle | Imine Pd pincer complexes CO2 hydrogenation Homogenous catalysis Nonkululeko Miya Nyasha Makuve Edward Ocansey Gift Mehlana James Darkwa Banothile C.E. Makhubela Palladium complexes bearing bis-aldimine N^C^N and N^N^N pincer ligands; A study of homogeneous/heterogeneous catalyzed CO2 hydrogenation |
| title | Palladium complexes bearing bis-aldimine N^C^N and N^N^N pincer ligands; A study of homogeneous/heterogeneous catalyzed CO2 hydrogenation |
| title_full | Palladium complexes bearing bis-aldimine N^C^N and N^N^N pincer ligands; A study of homogeneous/heterogeneous catalyzed CO2 hydrogenation |
| title_fullStr | Palladium complexes bearing bis-aldimine N^C^N and N^N^N pincer ligands; A study of homogeneous/heterogeneous catalyzed CO2 hydrogenation |
| title_full_unstemmed | Palladium complexes bearing bis-aldimine N^C^N and N^N^N pincer ligands; A study of homogeneous/heterogeneous catalyzed CO2 hydrogenation |
| title_short | Palladium complexes bearing bis-aldimine N^C^N and N^N^N pincer ligands; A study of homogeneous/heterogeneous catalyzed CO2 hydrogenation |
| title_sort | palladium complexes bearing bis-aldimine n^c^n and n^n^n pincer ligands; a study of homogeneous/heterogeneous catalyzed co2 hydrogenation |
| topic | Imine Pd pincer complexes CO2 hydrogenation Homogenous catalysis |
| url | https://cris.library.msu.ac.zw//handle/11408/5289 https://doi.org/10.1016/j.ica.2022.121207 |
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