Donor–Acceptor Viologens with Through‐Space Conjugation for Enhanced Visible‐Light‐Driven Photocatalysis
Abstract A series of novel donor–acceptor (D–A) type viologens with through‐space conjugation (TSC) are synthesized. The synergistic effect of D–A conjugation and TSC endow these compounds with a narrower energy gap, excellent redox properties, strong absorption in the visible range (up to 450 nm),...
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| Format: | Article |
| Language: | English |
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Wiley
2025-01-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202409925 |
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| author | Yi Qiao Liang Xu Xiaoyang Liu Yujing Gao Naiyao Li Yawen Li Tianle Cao Ni Yan Zishun Liu Gang He |
| author_facet | Yi Qiao Liang Xu Xiaoyang Liu Yujing Gao Naiyao Li Yawen Li Tianle Cao Ni Yan Zishun Liu Gang He |
| author_sort | Yi Qiao |
| collection | DOAJ |
| description | Abstract A series of novel donor–acceptor (D–A) type viologens with through‐space conjugation (TSC) are synthesized. The synergistic effect of D–A conjugation and TSC endow these compounds with a narrower energy gap, excellent redox properties, strong absorption in the visible range (up to 450 nm), and high efficiency of intramolecular charge transfer (ICT). These compounds also exhibit a long‐lived charge separation state and stable radical formation. Considering their impressive photophysical and redox properties, TSC viologens with D–A conjugation are explored for visible‐light‐driven photocatalysis. As a catalyst in oxidative coupling reactions under visible light, compound 9 can achieve a yield of 94%, attributed to its strong ICT effect. Additionally, hybridized into graphitic carbon nitride (g‐C₃N₄), compound 9 enhances hydrogen production performance under visible light, achieving an H2 generation rate of 4102 µmol h−1g−1. This study highlights the potential applications of TSC viologens in photocatalytic systems. |
| format | Article |
| id | doaj-art-1ca0a797ced542bc86a01543a0d5195d |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-1ca0a797ced542bc86a01543a0d5195d2025-01-13T15:29:43ZengWileyAdvanced Science2198-38442025-01-01122n/an/a10.1002/advs.202409925Donor–Acceptor Viologens with Through‐Space Conjugation for Enhanced Visible‐Light‐Driven PhotocatalysisYi Qiao0Liang Xu1Xiaoyang Liu2Yujing Gao3Naiyao Li4Yawen Li5Tianle Cao6Ni Yan7Zishun Liu8Gang He9Frontier Institute of Science and Technology Key Laboratory of Thermo‐Fluid Science and Engineering of Ministry of Education State Key Laboratory for Strength and Vibration of Mechanical Structures Xi'an Jiaotong University Xi'an Shaanxi Province 710054 P. R. ChinaFrontier Institute of Science and Technology Key Laboratory of Thermo‐Fluid Science and Engineering of Ministry of Education State Key Laboratory for Strength and Vibration of Mechanical Structures Xi'an Jiaotong University Xi'an Shaanxi Province 710054 P. R. ChinaFrontier Institute of Science and Technology Key Laboratory of Thermo‐Fluid Science and Engineering of Ministry of Education State Key Laboratory for Strength and Vibration of Mechanical Structures Xi'an Jiaotong University Xi'an Shaanxi Province 710054 P. R. ChinaFrontier Institute of Science and Technology Key Laboratory of Thermo‐Fluid Science and Engineering of Ministry of Education State Key Laboratory for Strength and Vibration of Mechanical Structures Xi'an Jiaotong University Xi'an Shaanxi Province 710054 P. R. ChinaFrontier Institute of Science and Technology Key Laboratory of Thermo‐Fluid Science and Engineering of Ministry of Education State Key Laboratory for Strength and Vibration of Mechanical Structures Xi'an Jiaotong University Xi'an Shaanxi Province 710054 P. R. ChinaFrontier Institute of Science and Technology Key Laboratory of Thermo‐Fluid Science and Engineering of Ministry of Education State Key Laboratory for Strength and Vibration of Mechanical Structures Xi'an Jiaotong University Xi'an Shaanxi Province 710054 P. R. ChinaSchool of Materials Science and Engineering Chang'an University Xi'an 710064 ChinaSchool of Materials Science and Engineering Chang'an University Xi'an 710064 ChinaInternational Center for Applied Mechanics State Key Laboratory for Strength and Vibration of Mechanical Structures Xi'an Jiaotong University Xi'an Shaanxi Province 710054 P. R. ChinaFrontier Institute of Science and Technology Key Laboratory of Thermo‐Fluid Science and Engineering of Ministry of Education State Key Laboratory for Strength and Vibration of Mechanical Structures Xi'an Jiaotong University Xi'an Shaanxi Province 710054 P. R. ChinaAbstract A series of novel donor–acceptor (D–A) type viologens with through‐space conjugation (TSC) are synthesized. The synergistic effect of D–A conjugation and TSC endow these compounds with a narrower energy gap, excellent redox properties, strong absorption in the visible range (up to 450 nm), and high efficiency of intramolecular charge transfer (ICT). These compounds also exhibit a long‐lived charge separation state and stable radical formation. Considering their impressive photophysical and redox properties, TSC viologens with D–A conjugation are explored for visible‐light‐driven photocatalysis. As a catalyst in oxidative coupling reactions under visible light, compound 9 can achieve a yield of 94%, attributed to its strong ICT effect. Additionally, hybridized into graphitic carbon nitride (g‐C₃N₄), compound 9 enhances hydrogen production performance under visible light, achieving an H2 generation rate of 4102 µmol h−1g−1. This study highlights the potential applications of TSC viologens in photocatalytic systems.https://doi.org/10.1002/advs.202409925donor–acceptorhydrogen productionoxidative coupling reactionthrough‐space conjugationviologens |
| spellingShingle | Yi Qiao Liang Xu Xiaoyang Liu Yujing Gao Naiyao Li Yawen Li Tianle Cao Ni Yan Zishun Liu Gang He Donor–Acceptor Viologens with Through‐Space Conjugation for Enhanced Visible‐Light‐Driven Photocatalysis Advanced Science donor–acceptor hydrogen production oxidative coupling reaction through‐space conjugation viologens |
| title | Donor–Acceptor Viologens with Through‐Space Conjugation for Enhanced Visible‐Light‐Driven Photocatalysis |
| title_full | Donor–Acceptor Viologens with Through‐Space Conjugation for Enhanced Visible‐Light‐Driven Photocatalysis |
| title_fullStr | Donor–Acceptor Viologens with Through‐Space Conjugation for Enhanced Visible‐Light‐Driven Photocatalysis |
| title_full_unstemmed | Donor–Acceptor Viologens with Through‐Space Conjugation for Enhanced Visible‐Light‐Driven Photocatalysis |
| title_short | Donor–Acceptor Viologens with Through‐Space Conjugation for Enhanced Visible‐Light‐Driven Photocatalysis |
| title_sort | donor acceptor viologens with through space conjugation for enhanced visible light driven photocatalysis |
| topic | donor–acceptor hydrogen production oxidative coupling reaction through‐space conjugation viologens |
| url | https://doi.org/10.1002/advs.202409925 |
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