Sandwich-Type Uranyl Phosphate–Polyoxometalate Cluster Exhibiting Strong Luminescence
| العنوان: | Sandwich-Type Uranyl Phosphate–Polyoxometalate Cluster Exhibiting Strong Luminescence |
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| المؤلفون: | Hai-Ying Wang, Xiu-Ying Zheng, Xiang-Jian Kong, La-Sheng Long, Lan-Sun Zheng |
| المصدر: | Inorganic Chemistry. 60:6790-6795 |
| بيانات النشر: | American Chemical Society (ACS), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Photoluminescence, 010405 organic chemistry, Quantum yield, 010402 general chemistry, Uranyl, 01 natural sciences, Fluorescence, 0104 chemical sciences, Inorganic Chemistry, Crystal, Crystallography, chemistry.chemical_compound, chemistry, Polyoxometalate, Emission spectrum, Physical and Theoretical Chemistry, Luminescence |
| الوصف: | A pure inorganic uranyl phosphate-polyoxometalate of Na17{Na@[(SbW9O33)2(UO2)6(PO3OH)6]}·xH2O (abbreviated as Na@U6P6, with x ≈ 46) featuring a sandwich-type structure was prepared using Keggin-type trilacunary [α-B-SbW9O33]9- units as building blocks, which were formed in situ by SbCl3 and Na2WO4·2H2O. Crystal structural analysis showed that six UO22+ cations and six PO3OH2- anions generated a wheel-like cluster unit with a Na+ center ([Na@(UO2)6(PO3OH)6]+) that is stabilized by two [α-B-SbW9O33]9- units. Na@U6P6 displayed a solid-state photoluminescence quantum yield of 33% at 300 K. The temperature-dependent fluorescence emission spectra showed that Na@U6P6 has temperature-sensitive fluorescence in which its emission intensity decreased by 77% as the temperature increased from 200 to 300 K. These results suggest that such uranyl phosphate-polyoxometalate clusters could serve as potential temperature-sensitive molecular materials. |
| تدمد: | 1520-510X 0020-1669 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f0038ec1ed19ffeea0efac4ea999cafTest https://doi.org/10.1021/acs.inorgchem.1c00622Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....3f0038ec1ed19ffeea0efac4ea999caf |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1520510X 00201669 |
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