FROM CRYSTALLINE BORYL-SUBSTITUTED AND BORYL-COUPLED 2,2,4,4,6,6-HEXAMETHYL-CYCLOTRISILAZANES TO BETA-SIC AND BN

Authors
SCHAIBLE S RIEDEL R BOESE R WERNER E KLINGEBIEL U NIEGER M
Citation
S. Schaible et al., FROM CRYSTALLINE BORYL-SUBSTITUTED AND BORYL-COUPLED 2,2,4,4,6,6-HEXAMETHYL-CYCLOTRISILAZANES TO BETA-SIC AND BN, Applied organometallic chemistry, 8(5), 1994, pp. 491-498
Citations number
18
Categorie Soggetti
Chemistry Applied","Chemistry Inorganic & Nuclear
Journal title
Applied organometallic chemistry → ACNP
ISSN journal
02682605
Volume
8
Issue
5
Year of publication
1994
Pages
491 - 498
Database
ISI
SICI code
0268-2605(1994)8:5<491:FCBAB2>2.0.ZU;2-T
Abstract
[Me2SiNBFN(SiMe3)2]3 (1) is synthesized in the reaction of trilithiate d hexamethylcyclotrisilazane with F2BN(SiMe3)2. The mono- and dilithiu m derivatives of the six-membered ring (Me2SiNH)2 Me2SiNSiFMe2 react w ith the F2B-substituted cyclotrisilazane F2B(NSiMe2)3(SiFMe2)2 in the molar ratio 1 : 1 or 1: 2 to give the BF-coupled rings 2 and 3. The cr ystal structure analysis of 1 and 3 and pyrolysis of 1 and 3 with form ation of silicon boron carbonitride and its crystallisation to composi te powders at very high temperatures are reported.