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Single-Crystal Time-of-Flight Neutron Diffraction and Magic-Angle-Spinning NMR Spectroscopy Resolve the Structure and 1 H and 7 Li Dynamics of the Uranyl Peroxide Nanocluster U 60
Single-crystal time-of-flight neutron diffraction has provided atomic resolution of H atoms of H O molecules and hydroxyl groups, as well as Li cations in the uranyl peroxide nanocluster U . Solid-state magic-angle-spinning nuclear magnetic resonance (MAS NMR) spectroscopy was used to confirm the dy...
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Published in: | Inorganic chemistry 2017-08, Vol.56 (16), p.9676-9683 |
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Main Authors: | , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Single-crystal time-of-flight neutron diffraction has provided atomic resolution of H atoms of H
O molecules and hydroxyl groups, as well as Li cations in the uranyl peroxide nanocluster U
. Solid-state magic-angle-spinning nuclear magnetic resonance (MAS NMR) spectroscopy was used to confirm the dynamics of these constituents, revealing the transportation of Li atoms and H
O through cluster walls. H atoms of hydroxyl units that are located on the cluster surface are involved in the transfer of H
O and Li cations from inside to outside and vice versa. This exchange occurs as a concerted motion and happens rapidly even in the solid state. As a consequence of its large size and open hexagonal pores, U
exchanges Li cations more rapidly compared to other uranyl nanoclusters. |
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ISSN: | 0020-1669 1520-510X |
DOI: | 10.1021/acs.inorgchem.7b01174 |