Issue 8, 2003
From the journal:

Journal of Materials Chemistry

The location of fluoride and organic guests in ‘as-made’ pure silicazeolites FER and CHA

Luis A. Villaescusa,a   Ivor Bull,b   Paul S. Wheatley,b   Philip Lightfootb  and  Russell E. Morris*b  

* Corresponding authors

a Departmento de Química, Universidad Politécnica de Valencia, Camino de Vera s/n Valencia 46071, Spain

b School of Chemistry, University of St. Andrews, Purdie Building, St. Andrews, Scotland, UK

Abstract

The structure determination of as-made silica zeolites CHA and FER prepared in the presence of fluoride ions has been accomplished using microcrystal X-ray diffraction at a synchrotron source. In both cases, the location of the fluoride ions has been determined. Fluoride ions are incorporated into small double six-ring cages in the CHA framework, and the organic guests have been located in the larger chabazite cages. In contrast to two previous single-crystal X-ray diffraction studies of as-made siliceous FER prepared in related ways fluoride ions are incorporated into the framework and are found occluded inside small cages in the structure.

Graphical abstract: The location of fluoride and organic guests in ‘as-made’ pure silica zeolites FER and CHA

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Article information

DOI
https://doi.org/10.1039/B300728F
Article type
Paper
Submitted
20 Jan 2003
Accepted
14 May 2003
First published
10 Jun 2003

J. Mater. Chem., 2003,13, 1978-1982

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The location of fluoride and organic guests in ‘as-made’ pure silica zeolites FER and CHA

L. A. Villaescusa, I. Bull, P. S. Wheatley, P. Lightfoot and R. E. Morris, J. Mater. Chem., 2003, 13, 1978 DOI: 10.1039/B300728F

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