Authors
Citation
Tc. Watling et Lvc. Rees, SI-29 MAS NMR-STUDY OF A HIGHLY SILICEOUS EUO-TYPE MATERIAL, Journal of the Chemical Society. Faraday transactions, 91(23), 1995, pp. 4309-4311
Citations number
11
Categorie Soggetti
Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
ISSN journal
09565000
Volume
91
Issue
23
Year of publication
1995
Pages
4309 - 4311
Database
ISI
SICI code
0956-5000(1995)91:23<4309:SMNOAH>2.0.ZU;2-3
Abstract
The Si-29 MAS NMR spectrum of a highly crystalline and siliceous (Si/A
l = 1482) sample of an EUO-type material contains at least 13 peaks. I
n the published topology EUO has only 10 crystallographic sites. Thus,
the symmetry of the material is lower than that of the topology. The
most likely space group of this sample is Cm2b, Cmm2, Pmab or Pmma. In
creasing the temperature of the sample from room temperature to 100 de
grees C does not produce a phase change, in contrast to silicalite-1.