REACTION OF TRIMETHYL-SILYL AND DIMETHYL-SILYL RADICALS WITH PENTAMETHYLDISILANE

Authors
KERST C POTZINGER P WAGNER HG
Citation
C. Kerst et al., REACTION OF TRIMETHYL-SILYL AND DIMETHYL-SILYL RADICALS WITH PENTAMETHYLDISILANE, Zeitschrift fur Naturforschung. A, A journal of physical sciences, 51(1-2), 1996, pp. 102-104
Citations number
15
Categorie Soggetti
Chemistry Physical",Physics
Journal title
Zeitschrift fur Naturforschung. A, A journal of physical sciences → ACNP
ISSN journal
09320784
Volume
51
Issue
1-2
Year of publication
1996
Pages
102 - 104
Database
ISI
SICI code
0932-0784(1996)51:1-2<102:ROTADR>2.0.ZU;2-1
Abstract
The rate constant for the H atom abstraction of trimethylsilyl radical s from pentamethyldisilane (k (4)) was measured relative to the trimet hylsilyl combination reaction k (3). A value for k(4)/root k(3) = (8.5 3 +/- 0.08) . 10(-11) cm(3/2) s(-1/2) was obtained. For the dimethylsi lyl radical, a smaller value for the corresponding rate constant ratio (5.9+/-0.2) . 10(-11) cm(3/2) s(-1/2) was measured. and this was attr ibuted to a disproportionation reaction between the dimethylsilyl and the pentamethyldisilyl radical leading to dimethylsilylene.