Höhlein Ignaz M D, Angı Arzu, Sinelnikov Regina, Veinot Jonathan G C, Rieger Bernhard
Wacker-Lehrstuhl für Makromolekulare Chemie, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching (Germany).
Chemistry. 2015 Feb 9;21(7):2755-8. doi: 10.1002/chem.201405555. Epub 2014 Dec 22.
Hydride-terminated photoluminescent silicon nanocrystals (SiNCs) were functionalized with organolithium compounds. The reaction is proposed to proceed through cleavage of Si - Si bonds and formation of a Si - Li surface species. The method yields colloidally stabilized SiNCs at room temperature with short reaction times. SiNCs with mixed surface functionalities can be prepared in an easy two-step reaction by this method by quenching of the Si - Li group with electrophiles or by addressing free Si - H groups on the surface with a hydrosilylation reaction.
氢化物封端的光致发光硅纳米晶体（SiNCs）用有机锂化合物进行了功能化。该反应被认为是通过Si - Si键的断裂和Si - Li表面物种的形成来进行的。该方法在室温下反应时间短，能得到胶体稳定的SiNCs。通过这种方法，通过用亲电试剂淬灭Si - Li基团或通过硅氢化反应处理表面的游离Si - H基团，可以在一个简单的两步反应中制备具有混合表面功能的SiNCs。
