English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Non-Oxide Sol–Gel Chemistry: Preparation from Tris(dialkylamino)silazanes of a Carbon-Free, Porous, Silicon Diimide Gel

MPS-Authors
/persons/resource/persons58937

Rovai,  Riccardo
Research Group Bradley, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

/persons/resource/persons58744

Lehmann,  Christian W.
Service Department Lehmann (EMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Rovai, R., Lehmann, C. W., & Bradley, J. S. (1999). Non-Oxide Sol–Gel Chemistry: Preparation from Tris(dialkylamino)silazanes of a Carbon-Free, Porous, Silicon Diimide Gel. Angewandte Chemie International Edition, 38(13-14), 2036-2038. doi:10.1002/(SICI)1521-3773(19990712)38:13/14<2036:AID-ANIE2036>3.0.CO;2-Q.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0024-6595-F
Abstract
The acid-catalyzed ammonolysis of the hitherto unknown compound tris(dimethylamino)silylamine (1), which is prepared from SiCl4 in high yield and purity, results in the preparation of a silicon diimide gel. The probable first step in this process is the acid-catalyzed self-condensation of 1 to the cyclic trimer [{(CH3)2N}2SiNH]3. This ammonolysis under mild conditions in THF provides a semirigid translucent gel. On drying under mild conditions in an ammonia atmosphere this non-oxide gel yields a high surface area silicon diimide xerogel that is the first example of a porous non-oxide silicate gel.