Emergence of ligand-to-metal charge transfer in homogeneous photocatalysis and photosensitization
Light energy can be harnessed by photosensitizers or photocatalysts so that some chemical reactions can be carried out under milder conditions compared to the traditional heat-driven processes. To facilitate the photodriven reactions, a large variety of chromophores that operate via charge transfer...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Online Access: | https://hdl.handle.net/10356/157554 |
| _version_ | 1826118387550388224 |
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| author | Li, Chenfei Kong, Xin Ying Tan, Zheng Hao Yang, Crystal Ting Soo, Han Sen |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Li, Chenfei Kong, Xin Ying Tan, Zheng Hao Yang, Crystal Ting Soo, Han Sen |
| author_sort | Li, Chenfei |
| collection | NTU |
| description | Light energy can be harnessed by photosensitizers or photocatalysts so that some chemical reactions can be carried out under milder conditions compared to the traditional heat-driven processes. To facilitate the photodriven reactions, a large variety of chromophores that operate via charge transfer excitations have been reported because of their typically longer excited-state lifetimes, which are key to the downstream photochemical processes. Although both metal-to-ligand charge transfers and ligand-to-metal charge transfers are well-established light absorption pathways, the former has been widely adopted in photocatalysis, whereas the latter has taken on greater importance in photosensitization applications only recently. In this article, we review the latest developments on ligand-to-metal charge transfer photosensitization by molecular complexes across the periodic table, with a focus on homogeneous photocatalysis and the use of photophysical measurements and computational calculations to understand the electronic structures, photochemical processes, structure-activity relationships, and reaction mechanisms. We also present our perspectives on the possible future developments in the field. |
| first_indexed | 2024-10-01T04:42:34Z |
| format | Journal Article |
| id | ntu-10356/157554 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:42:34Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1575542023-02-28T20:05:55Z Emergence of ligand-to-metal charge transfer in homogeneous photocatalysis and photosensitization Li, Chenfei Kong, Xin Ying Tan, Zheng Hao Yang, Crystal Ting Soo, Han Sen School of Physical and Mathematical Sciences Science::Chemistry::Physical chemistry Science::Chemistry::Inorganic chemistry Photocatalysis Ligand-to-Metal Charge Transfer Light energy can be harnessed by photosensitizers or photocatalysts so that some chemical reactions can be carried out under milder conditions compared to the traditional heat-driven processes. To facilitate the photodriven reactions, a large variety of chromophores that operate via charge transfer excitations have been reported because of their typically longer excited-state lifetimes, which are key to the downstream photochemical processes. Although both metal-to-ligand charge transfers and ligand-to-metal charge transfers are well-established light absorption pathways, the former has been widely adopted in photocatalysis, whereas the latter has taken on greater importance in photosensitization applications only recently. In this article, we review the latest developments on ligand-to-metal charge transfer photosensitization by molecular complexes across the periodic table, with a focus on homogeneous photocatalysis and the use of photophysical measurements and computational calculations to understand the electronic structures, photochemical processes, structure-activity relationships, and reaction mechanisms. We also present our perspectives on the possible future developments in the field. Agency for Science, Technology and Research (A*STAR) Ministry of Education (MOE) Nanyang Technological University National Research Foundation (NRF) Submitted/Accepted version H.S.S. acknowledges that this project is supported by A*STAR under the AME IRG grant A2083c0050. H.S.S. is also grateful for the Singapore Ministry of Education Academic Research Fund Tier 1 grant RT 05/19. H.S.S. and X.Y.K. thank the Singapore National Academy of Science (SNAS) and the National Research Foundation (NRF) Singapore for funding under its SNAS ASEAN Postdoctoral Fellowship (NRF-MP-2020-0001) program. Part of this work was also supported by the Nanyang Technological University 5th ACE grant call and the 2021 American Chemical Society Green Chemistry Institute Pharmaceutical Roundtable Ignition Grant. Z.H.T thanks the Nanyang Technological University - CN Yang Scholars Program for financial support. 2022-05-15T06:11:25Z 2022-05-15T06:11:25Z 2022 Journal Article Li, C., Kong, X. Y., Tan, Z. H., Yang, C. T. & Soo, H. S. (2022). Emergence of ligand-to-metal charge transfer in homogeneous photocatalysis and photosensitization. Chemical Physics Reviews, 3(2), 021303-. https://dx.doi.org/10.1063/5.0086718 2688-4070 https://hdl.handle.net/10356/157554 10.1063/5.0086718 2 3 021303 en A2083c0050 RT 05/19 NRF-MP-2020-0001 Chemical Physics Reviews © 2022 Author(s). All rights reserved. This paper was published by AIP Publishing in Chemical Physics Reviews and is made available with permission of Author(s). application/pdf |
| spellingShingle | Science::Chemistry::Physical chemistry Science::Chemistry::Inorganic chemistry Photocatalysis Ligand-to-Metal Charge Transfer Li, Chenfei Kong, Xin Ying Tan, Zheng Hao Yang, Crystal Ting Soo, Han Sen Emergence of ligand-to-metal charge transfer in homogeneous photocatalysis and photosensitization |
| title | Emergence of ligand-to-metal charge transfer in homogeneous photocatalysis and photosensitization |
| title_full | Emergence of ligand-to-metal charge transfer in homogeneous photocatalysis and photosensitization |
| title_fullStr | Emergence of ligand-to-metal charge transfer in homogeneous photocatalysis and photosensitization |
| title_full_unstemmed | Emergence of ligand-to-metal charge transfer in homogeneous photocatalysis and photosensitization |
| title_short | Emergence of ligand-to-metal charge transfer in homogeneous photocatalysis and photosensitization |
| title_sort | emergence of ligand to metal charge transfer in homogeneous photocatalysis and photosensitization |
| topic | Science::Chemistry::Physical chemistry Science::Chemistry::Inorganic chemistry Photocatalysis Ligand-to-Metal Charge Transfer |
| url | https://hdl.handle.net/10356/157554 |
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