Stable O,O'-Bis(hydroxylamino)silanes R2Si(ONH2)2 and Isomeric N,N'- and O,O'-Bis(silylhydroxylamino)silanes R2Si(

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• 作者：Christina Ebker ; Friedhelm Diedrich ; Uwe Klingebiel ; Mathias Noltemeyer ; and Stefan Schmatz
• 刊名：Organometallics
• 出版年：2003
• 出版时间：June 23, 2003
• 年：2003
• 卷：22
• 期：13
• 页码：2594 - 2598
• 全文大小：108K
• 年卷期：v.22,no.13(June 23, 2003)
• ISSN：1520-6041

文摘

The first bis(hydroxylamino)silanes, Me₃C(R)Si(ONH₂)₂, R = Me (1), CMe₃ (2), are isolatedfrom a two-phase reaction. They crystallize as dimers via NH···N bridges. In the reaction ofthe monosilylhydroxylamine Me₃SiONH₂ and the dichlorosilane Me(Me₃C)SiCl₂ the N,N'-bis(-O-trimethylsilyl-hydroxylamino)silane Me(Me₃C)Si(NHOSiMe₃)₂ (4) is obtained. Starting from 1, it is now possible to synthesize the isomeric O,O'-bis(-N-trimethylsilyl-hydroxylamino)silane Me(Me₃C)Si(ONHSiMe₃)₂ (5). The results of the crystal structure analyses of2 and 4 are reported. Quantum chemical calculations of the bis(hydroxylamino)silanes Me₂Si(ONH₂)₂ and (Me₃C)₂Si(ONH₂)₂ are reported and discussed with particular emphasis onconformational structure.