Inorganic and Organometallic Chemistry, University Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany.
Chem Commun (Camb). 2018 Jul 10;54(56):7846-7849. doi: 10.1039/c8cc04517h.
Simple silyl ethers like O(SiMe3)2 in contrast to normal ethers are inert to metal bonding; however, a "naked", highly Lewis-acidic, cationic Mg species enforces complexation. DFT calculations indicate that agostic interactions and van der Waals attraction significantly contribute to the stability of this first example of unsupported metal silyl ether coordination.
简单的硅醚，如 O(SiMe3)2，与普通醚相反，对金属键没有反应性；然而，一个“裸露的”、高度路易斯酸性的、阳离子性的 Mg 物种强制配位。DFT 计算表明，螯合相互作用和范德华吸引力对这种首例无支撑金属硅醚配位的稳定性有显著贡献。
