| 23Na chemical shifts and local structure in crystalline, glassy, and molten sodium borates and germanates. | |
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MedLine Citation:
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PMID: 9472786 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A simple correlation between average Na-O bond length and 23Na isotropic chemical shift in crystalline germanates and borates has been established, similar to existing correlations for sodium in silicates and carbonates. This empirical trend is discussed in terms of a decreasing paramagnetic contribution to the chemical shift with increasing average bond length. The correlation is then applied to data for sodium borate and germanate glasses and melts from room temperature to 1200 degrees C, where both structural and compositional effects on the chemical shift are apparent. |
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Authors:
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A M George; S Sen; J F Stebbins |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Solid state nuclear magnetic resonance Volume: 10 ISSN: 0926-2040 ISO Abbreviation: Solid State Nucl Magn Reson Publication Date: 1997 Dec |
Date Detail:
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Created Date: 1998-03-26 Completed Date: 1998-03-26 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 9306181 Medline TA: Solid State Nucl Magn Reson Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 9-17 Citation Subset: IM |
Affiliation:
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Department of Geological and Environmental Sciences, Stanford University, CA 94305-2115, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Borates
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chemistry* Chemistry, Physical Crystallization Germanium / chemistry* Glass / chemistry* Magnetic Resonance Spectroscopy / methods* Physicochemical Phenomena Sodium Isotopes* |
| Chemical | |
Reg. No./Substance:
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0/Borates; 0/Sodium Isotopes; 1310-53-8/germanium oxide; 1330-43-4/sodium borate; 7440-56-4/Germanium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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