Source:http://linkedlifedata.com/resource/pubmed/id/18306173
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
2008-3-4
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pubmed:abstractText |
Solid-state (23)Na and (31)P magic-angle spinning nuclear magnetic resonance spectroscopy and X-ray crystallography have been used to study the structures of the chain metaphosphates NaCa(PO(3))(3) and NaSr(PO(3))(3). The compounds are isostructural and crystallise in space group P(-1) with the following parameters: NaCa(PO(3))(3), a = 6.711 A, b = 6.934 A, c = 7.619 A, alpha = 83.44 degrees , beta = 81.41 degrees , gamma = 82.80 degrees ; NaSr(PO(3))(3)a = 6.805 A, b = 7.133 A, c = 7.720 A and alpha = 83.71 degrees , beta = 80.48 degrees , gamma = 82.87 degrees . Both structures contain anionic metaphosphate chains of (PO(3))(n) (n) with ionic contacts to Na(+) ions in distorted octahedral sites and Ca(2+) (or Sr(2+)) in distorted dodecahedral sites. (31)P and (23)Na NMR are entirely consistent with the crystallographic data and an empirical method for assigning (31)P resonances to particular crystallographically unique P atoms is described.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Calcium,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphates,
http://linkedlifedata.com/resource/pubmed/chemical/Phosphorus Isotopes,
http://linkedlifedata.com/resource/pubmed/chemical/Sodium,
http://linkedlifedata.com/resource/pubmed/chemical/Sodium Isotopes,
http://linkedlifedata.com/resource/pubmed/chemical/Strontium
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
1097-458X
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pubmed:author | |
pubmed:copyrightInfo |
Copyright (c) 2008 John Wiley & Sons, Ltd.
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pubmed:issnType |
Electronic
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pubmed:volume |
46
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
316-22
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pubmed:meshHeading |
pubmed-meshheading:18306173-Calcium,
pubmed-meshheading:18306173-Crystallography, X-Ray,
pubmed-meshheading:18306173-Magnetic Resonance Spectroscopy,
pubmed-meshheading:18306173-Models, Molecular,
pubmed-meshheading:18306173-Molecular Structure,
pubmed-meshheading:18306173-Phosphates,
pubmed-meshheading:18306173-Phosphorus Isotopes,
pubmed-meshheading:18306173-Reference Standards,
pubmed-meshheading:18306173-Sodium,
pubmed-meshheading:18306173-Sodium Isotopes,
pubmed-meshheading:18306173-Spectrophotometry, Infrared,
pubmed-meshheading:18306173-Strontium,
pubmed-meshheading:18306173-Temperature
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pubmed:year |
2008
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pubmed:articleTitle |
Structures of the chain metaphosphates NaM(PO3)3 (M = Ca or Sr).
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pubmed:affiliation |
Centre for Materials Research, School of Biological and Chemical Sciences, Queen Mary, University of London, Mile End Road London E1, 4NS, UK. i.abrahams@qmul.ac.uk
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pubmed:publicationType |
Journal Article
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