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Summary: Appl. Magn. Reson. 18, 425#434 (2000)
Polysilyl Radicals: EPR Study of the Formation
and Decomposition of Star Polysilanes
Y. Apeloig1
, D. Bravo-Zhivotovskii1
, M. Yuzefovich1
,
M. Bendikov1
, and A. I. Shames2
1
Department of Chemistry and the Lise Meitner-Minerva Center for Computational Quantum
Chemistry, Technion Israel Institute of Technology, Haifa, Israel
2
Department of Physics, Ben-Gurion University of the Negev, Beer-Sheva, Israel
Received October 30, 1999; revised January 16, 2000
Abstract. Electron paramagnetic resonance (EPR) spectroscopy was fruitfully used for studying the
formation and the reactions of the star polysilane radical (Me3SiMe2Si)3Si (1). 1, which was success-
fully generated both thermally and photochemically from a variety of precursors, was found to be sig-
nificantly more stable kinetically than the (Me3Si)3Si radical. Thus, (Me3SiMe2Si)3Si
has a half-life
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