PREPARATION AND CHARACTERIZATION OF OCTASILSESQUIOXANE CAGE MONOMERS

Authors
HARRISON PG HALL C
Citation
Pg. Harrison et C. Hall, PREPARATION AND CHARACTERIZATION OF OCTASILSESQUIOXANE CAGE MONOMERS, Silicon, germanium, tin and lead compounds, 20(8), 1997, pp. 515-529
Citations number
35
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear
Journal title
Silicon, germanium, tin and lead compounds → ACNP
ISSN journal
07921241
Volume
20
Issue
8
Year of publication
1997
Pages
515 - 529
Database
ISI
SICI code
0792-1241(1997)20:8<515:PACOOC>2.0.ZU;2-1
Abstract
The optimized preparations and detailed spectroscopic characterization (solution and magic angle spinning nmr, infrared, FT-Raman, powder XR D, mass spectrometry) of the octasilsesquioxane cage compounds X8Si8O1 2 (X = H, CH=CH2, OSiMe2H, and OSiMe2Br) and the ionic compound {NMe4} (8){Si8O20}.60H(2)O are described. The octahydrido- and octavinyl comp ounds are relatively unreactive and surprisingly thermally stable, bei ng unchanged even after pyrolysis at 300 degrees C for 24h.