Location of fluoride counterion in As-synthesized silicalite-1 by single crystal X-ray diffraction
作者： Emmanuel Aubert , Florence Porcher , Mohamed Souhassou , Václav Petříček , Claude Lecomte
DOI: 10.1021/JP012231D
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摘要: This paper presents results from single-crystal X-ray diffraction at room temperature on as-synthesized tetrapropylammonium fluoride silicalite. The counteranion lies in a [415262] cage general position an interacting distance silicon framework atom (Si−F = 1.915(3) A). is close to the center of slightly distorted trigonal bypyramid consisting four oxygen atoms and anion. Si−O apical bond (1.667(2) A) clearly longer than basal distances (1.62 ± 0.01 occluded TPA+ cation described using disordered model channels intersection.
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