Isolation of a Side-On V(III)-(η2-O2) through the Intermediacy of a Low-Valent V(II) in a Metal–Organic Framework
| العنوان: | Isolation of a Side-On V(III)-(η2-O2) through the Intermediacy of a Low-Valent V(II) in a Metal–Organic Framework |
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| المؤلفون: | Peter Müller, Yuriy Román-Leshkov, Tianyang Chen, Julius Oppenheim, Luming Yang, Sujay Bagi, Mircea Dincă, Chenyue Sun |
| المصدر: | Inorganic Chemistry. 60:18205-18210 |
| بيانات النشر: | American Chemical Society (ACS), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Trimethylsilyl, Enthalpy, Vanadium, chemistry.chemical_element, Methane, Inorganic Chemistry, Metal, chemistry.chemical_compound, Crystallinity, Adsorption, chemistry, visual_art, Polymer chemistry, visual_art.visual_art_medium, Physical and Theoretical Chemistry, Porosity |
| الوصف: | We report the isolation of vanadium(II) in a metal-organic framework (MOF) by the reaction of the chloride-capped secondary building unit in the all-vanadium(III) V-MIL-101 (1) with 1,4-bis(trimethylsilyl)-2,3,5,6-tetramethyl-1,4-dihydropyrazine. The reduced material, 2, has a secondary building unit with the formal composition [VIIV2III], with each metal ion presenting one open coordination site. Subsequent reaction with O2 yields a side-on η2 vanadium-superoxo species, 3. The MOF featuring V(III)-superoxo moieties exhibits a mild enhancement in the isosteric enthalpy of adsorption for methane compared to the parent V-MIL-101. We present this synthetic methodology as a potentially broad way to access low-valent open metal sites within MOFs without causing a loss of crystallinity or porosity. The low-valent sites can serve as isolable intermediates to access species otherwise inaccessible by direct synthesis. |
| تدمد: | 1520-510X 0020-1669 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::bfa50de33451c18935d665896ce7a42e https://doi.org/10.1021/acs.inorgchem.1c02850 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........bfa50de33451c18935d665896ce7a42e |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 1520510X 00201669 |
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