Academic Journal
Porphyrin–Polyoxotungstate Molecular Hybrid as a Highly Efficient, Durable, Visible-Light-Responsive Photocatalyst for Aerobic Oxidation Reactions
| العنوان: | Porphyrin–Polyoxotungstate Molecular Hybrid as a Highly Efficient, Durable, Visible-Light-Responsive Photocatalyst for Aerobic Oxidation Reactions |
|---|---|
| المؤلفون: | Masahiro Yamaguchi, Kaito Shioya, Chifeng Li, Kentaro Yonesato, Kei Murata, Kazuyuki Ishii, Kazuya Yamaguchi, Kosuke Suzuki |
| سنة النشر: | 1753 |
| مصطلحات موضوعية: | Biophysics, Microbiology, Genetics, Physiology, Biotechnology, Developmental Biology, Space Science, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, mechanistic investigations suggested, four lacunary polyoxotungstates, amines proceeded using, exhibited remarkable efficiency, oxygen (< sup, including strong visible, exhibited superior durability, 1 , high efficiency, various dienes, substantial demand, subsequent singlet, selective oxidation, responsive photocatalyst, ranging applications, practical utilization, optical properties, often hindered, highly efficient, high activity, efficient generation |
| الوصف: | Organic–polyoxometalate (POM) hybrids have recently attracted considerable interest because of their distinctive properties and wide-ranging applications. For the construction of organic–POM hybrids, porphyrins are promising building units owing to their optical properties and reactivity, including strong visible-light absorption and subsequent singlet-oxygen ( 1 O 2 *) generation. However, the practical utilization of porphyrins as photocatalysts and photosensitizers is often hindered by their own degradation by 1 O 2 *. Therefore, there is a substantial demand for the development of porphyrin-derived photocatalysts with both high efficiency and durability. Herein, we present a porphyrin–polyoxotungstate molecular hybrid featuring a face-to-face stacked porphyrin dimer ( I ) fastened by four lacunary polyoxotungstates. Hybrid I exhibited remarkable efficiency and durability in photocatalytic aerobic oxidation reactions, and the selective oxidation of various dienes, alkenes, sulfides, and amines proceeded using just 0.003 mol % of the catalyst. Mechanistic investigations suggested that the high activity of I stems from the efficient generation of 1 O 2 *, resulting from the heavy-atom effect of POMs. Furthermore, despite its high efficiency in 1 O 2 * generation compared to free porphyrins, I exhibited superior durability against 1 O 2 *-induced degradation under photoirradiation. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| Relation: | https://figshare.com/articles/journal_contribution/Porphyrin_Polyoxotungstate_Molecular_Hybrid_as_a_Highly_Efficient_Durable_Visible-Light-Responsive_Photocatalyst_for_Aerobic_Oxidation_Reactions/25075644 |
| DOI: | 10.1021/jacs.3c11394.s001 |
| الاتاحة: | https://doi.org/10.1021/jacs.3c11394.s001 https://figshare.com/articles/journal_contribution/Porphyrin_Polyoxotungstate_Molecular_Hybrid_as_a_Highly_Efficient_Durable_Visible-Light-Responsive_Photocatalyst_for_Aerobic_Oxidation_Reactions/25075644 |
| Rights: | CC BY-NC 4.0 |
| رقم الانضمام: | edsbas.388FDFCD |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/jacs.3c11394.s001 |
|---|