| Direct evidence for interactions between acidic functional groups and silanols in cubic mesoporous organosilicas. | |
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MedLine Citation:
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PMID: 18693728 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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A facile one-pot synthesis route for preparation of a well-ordered cubic mesoporous silica SBA-1 functionalized with -COOH functional groups is reported for the first time. The results of 29Si{1H} HETCOR NMR provide direct evidence for the interactions between the carboxylic acid and silanol groups in carboxylic acid functionalized SBA-1. Density functional theory calculations indicate that the T3-Q4-Q3 motif is the favorable framework composition in the material and the carboxylic protons in the T3 species can form hydrogen bonds with the spatially proximate oxygen atom in the Q3 Si-OH species. |
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Authors:
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Hui-Hsu Gavin Tsai; Guang-Liang Jheng; Hsien-Ming Kao |
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Publication Detail:
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Type: Journal Article Date: 2008-08-12 |
Journal Detail:
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Title: Journal of the American Chemical Society Volume: 130 ISSN: 1520-5126 ISO Abbreviation: J. Am. Chem. Soc. Publication Date: 2008 Sep |
Date Detail:
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Created Date: 2008-08-28 Completed Date: 2008-10-15 Revised Date: 2009-01-12 |
Medline Journal Info:
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Nlm Unique ID: 7503056 Medline TA: J Am Chem Soc Country: United States |
Other Details:
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Languages: eng Pagination: 11566-7 Citation Subset: - |
Affiliation:
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Department of Chemistry, National Central University, Chung-Li, Taiwan 32054, ROC. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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