Infrared studies of 1-hexane adsorbed onto Cr3+-exchanged montmorillonite

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Authors:Adams, J. M.; Clapp, T. V.
Author Affiliations:Primary:
Univ. Coll. Wales, Edward Davies, Chem. Lab., Aberystwyth, United Kingdom
Volume Title:Clays and Clay Minerals
Source:Clays and Clay Minerals, 33(1), p.15-20. Publisher: Clay Minerals Society, Clarkson, NY, United States. ISSN: 0009-8604
Publication Date:1985
Note:In English with French and German and Russian summaries. 23 refs.; illus. incl. 2 tables
Summary:When 1-hexene was adsorbed by Cr3+-montmorillonite at room temperature, all evidence of C=C(str) vibrations was lost. Protonation of the alkene occurred, and the secondary carbocation formed was bound at a site on the primary coordination sphere of the interlayer cation. Some of the hydrogen atoms of these primary-sphere water molecules were involved in strong hydrogen bonds to the silicate sheets, whereas others did not form such bonds, but were free and directed into the interlayer space. These latter hydrogen atoms were labile and protonated the alkene molecules. [D.F.B.]
Subjects:Adsorption; Catalysis; Chromium; Clay mineralogy; Clay minerals; Experimental studies; Geochemistry; Infrared spectra; Metals; Minerals; Montmorillonite; Sheet silicates; Silicates; Spectra; Alkene; Hexene
Abstract Numbers:87M/0141
Record ID:1985055004
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland
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