Studies on the Properties of Organoselenium(IV) Fluorides and Azides

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• 作者：Thomas M. Klapö ; tke ; Burkhard Krumm ; Matthias Scherr
• 刊名：Inorganic Chemistry
• 出版年：2008
• 出版时间：June 2, 2008
• 年：2008
• 卷：47
• 期：11
• 页码：4712 - 4722
• 全文大小：1257K
• 年卷期：v.47,no.11(June 2, 2008)
• ISSN：1520-510X

文摘

The reaction of organoselenides and -diselenides (R₂Se and (RSe)₂) with XeF₂ furnished the corresponding organoselenium(IV) difluorides R₂SeF₂ (R = Me (1), Et (2), iPr (3), Ph (4), Mes (=2,4,6-(Me)₃C₆H₂) (5), Tipp (=2,4,6-(iPr)₃C₆H₂) (6), 2-Me₂NCH₂C₆H₄ (7)), and trifluorides RSeF₃ (R = Me (8), iPr (9), Ph (10), Mes (11), Tipp (12), Mes* (=2,4,6-(tBu)₃C₆H₂) (13), 2-Me₂NCH₂C₆H₄ (14)), respectively. In addition to characterization by multinuclear NMR spectroscopy, the first molecular structure of an organoselenium(IV) difluoride as well as the molecular structures of subsequent decomposition products have been determined. The substitution of fluorine atoms with Me₃SiN₃ leads to the corresponding organoselenium(IV) diazides R₂Se(N₃)₂ (R = Me (15), Et (16), iPr (17), Ph (18), Mes (19), 2-Me₂NCH₂C₆H₄ (20)) and triazides RSe(N₃)₃ (R = Me (21), iPr (22), Ph (23), Mes (24), Tipp (25), Mes* (26), 2-Me₂NCH₂C₆H₄ (27)), respectively. The organoselenium azides are extremely temperature-sensitive materials and can only be handled at low temperatures.