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Natural abundance Mg-25 solid-state NMR of Mg oxyanion systems : a combined experimental and computational study
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Cahill, Lindsay S., Hanna, John V., Wong, A. (Alan), Freitas, Jair C. C., Yates, Jonathan R., Harris, Robin K. (Robin Kingsley) and Smith, Mark E. (2009) Natural abundance Mg-25 solid-state NMR of Mg oxyanion systems : a combined experimental and computational study. Chemistry: A European Journal, Vol.15 (No.38). pp. 9785-9798. doi:10.1002/chem.200900346 ISSN 0947-6539.
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Official URL: http://dx.doi.org/10.1002/chem.200900346
Abstract
Solid-state, Mg-25 magic angle spinning nuclear magnetic resonance (MAS NMR) data are reported from a range of organic and inorganic magnesium-oxyanion compounds at natural abundance. To constrain the determination of the NMR interaction parameters (delta(iso), chi(Q), eta(Q)) data have been collected at three external magnetic fields (11.7, 14.1 and 18.8 T). Corresponding NMR parameters have also been calculated by using density functional theory (DFT) methods using the GIPAW approach, with good correlations being established between experimental and calculated values of both chi(Q) and delta(iso), These correlations demonstrate that the Mg-25 NMR parameters are very sensitive to the structure, with small changes in the local Mg2+ environment and the overall hydration state profoundly affecting the observed spectra. The observations suggest that Mg-25 NMR spectroscopy is a potentially potent probe for addressing some key problems in inorganic materials and of metal centres in biologically relevant molecules.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
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| Divisions: | Administration > University Executive Office Faculty of Science, Engineering and Medicine > Science > Physics |
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| Library of Congress Subject Headings (LCSH): | Nuclear magnetic resonance spectroscopy, Magnesium | ||||
| Journal or Publication Title: | Chemistry: A European Journal | ||||
| Publisher: | Wiley - V C H Verlag GmbH & Co. KGaA | ||||
| ISSN: | 0947-6539 | ||||
| Official Date: | 2009 | ||||
| Dates: |
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| Volume: | Vol.15 | ||||
| Number: | No.38 | ||||
| Number of Pages: | 14 | ||||
| Page Range: | pp. 9785-9798 | ||||
| DOI: | 10.1002/chem.200900346 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Natural Sciences and Engineering Research Council Canada (NSERC) |
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