Aghazadeh Meshgi Mohammad, Zitz Rainer, Walewska Małgorzata, Baumgartner Judith, Marschner Christoph
Institut für Anorganische Chemie, Technische Universität Graz, Stremayrgasse 9, 8010 Graz, Austria.
Institut für Chemie, Universität Graz, Stremayrgasse 9, 8010 Graz, Austria.
Organometallics. 2017 Apr 10;36(7):1365-1371. doi: 10.1021/acs.organomet.7b00084. Epub 2017 Mar 21.
Most known silatrane chemistry is concerned with examples where the attached silatrane substituent atom is that of an element more electronegative than silicon. The current study features silylated silatranes with a range of electropositive elements attached to the silyl group. The resulting compounds show different degrees of electron density on the silatrane-substituted silicon atom. This directly affects the Si-N interaction of the silatrane which can be monitored either by Si NMR spectroscopy or directly by single crystal XRD analysis of the Si-N distance. Within the sample of study the Si-N distance is increased from 2.153 to 3.13 Å. Moreover, the bis(trimethylsilyl)silatranylsilyl unit was studied as a substituent for disilylated germylene adducts.
大多数已知的硅氮烷化学涉及到所连接的硅氮烷取代基原子是比硅电负性更强的元素的例子。当前的研究以一系列带正电元素连接到硅基上的甲硅烷基化硅氮烷为特色。所得到的化合物在硅氮烷取代的硅原子上表现出不同程度的电子密度。这直接影响硅氮烷的Si-N相互作用，其可以通过硅核磁共振光谱法监测，或者直接通过对Si-N距离的单晶X射线衍射分析来监测。在研究样品中，Si-N距离从2.153 Å增加到3.13 Å。此外，双（三甲基硅基）硅氮烷基甲硅烷基单元作为二硅烷基化亚锗烯加合物的取代基进行了研究。
