Notizen: Si-N-Rotationshinderung in Fluor-Silyl-Hydrazinen / Si-N-Rotational Barrier in Fluoro-Silyl-Hydrazines
Open Access
- 1 October 1977
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 32 (10) , 1212-1213
- https://doi.org/10.1515/znb-1977-1025
Abstract
Fluorosilanes react with lithium salts of hydrazines to give fluorosilylhydrazines. The 19F NMR spectra of N,N′-bis(difluoromethylsilyl)-N,N′-diphenylhydrazine and N,N′-bis-(difluoroorganylsilyl) - N, N′ - bis (trimethylsilyl)-hydrazines show an AB system for the fluorineatoms at room temperature, which results from hindered rotation about the Si–N bonds. The coalescence temperature of N,N′bis(difluoromethylsilyl)-N,N′-diphenylhydrazine was observed at + 170 °C ± 10 °C.Keywords
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