| 5-coordinate si compounds as intermediates in the synthesis of silicates in nonaqueous media. | |
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MedLine Citation:
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PMID: 17744785 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Sodium silicoglycolate, an organosilicon compound in which silicon is in 5-coordination with respect to oxygen, is shown to be a reaction intermediate in the synthesis of a purely siliceous sodalite with ethylene glycol as solvent. The presence of silicon-29 nuclear magnetic resonances at -105.5 +/- 0.3 parts per million in solution and -102.7 parts per million in the solid state as well as x-ray powder diffraction patterns demonstrate that 5-coordinate silicon is intimately involved in the synthesis. Silicon compounds of the 5-coordinate type are highly reactive and are promising starting materials for the synthesis of novel silicone polymers, molecular sieves, glasses, semiconductors, and ceramics. We have used sodium silicoglycolate to prepare the molecular sieve silicalite as well as sodalites of different compositions. |
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Authors:
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B Herreros; S W Carr; J Klinowski |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Science (New York, N.Y.) Volume: 263 ISSN: 0036-8075 ISO Abbreviation: Science Publication Date: 1994 Mar |
Date Detail:
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Created Date: 2010-06-08 Completed Date: 2010-07-02 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0404511 Medline TA: Science Country: United States |
Other Details:
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Languages: eng Pagination: 1585-7 Citation Subset: - |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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