The invention provides process for preparing tin or germanium monochalcogenides of cubic crystalline structure, the process comprises combining a source of tin or germanium and a source of chalcogenide in a reaction vessel in the presence of uncharged liquid primary amine R—NH
2
and a charged form R—NH
3
+ associated with a counter anion, wherein R is saturated or unsaturated hydrocarbyl, which may be the same or different in the uncharged and charged forms, and recovering from the reaction mixture an essentially pure cubic phase of the monochalcogenides.
本发明提供了一种制备立方晶体结构的
锡或
锗单
硫属或单
碲属化合物的方法,该方法包括在无电荷液态初级胺R—NH2和带电形式R—NH3+与对应的阴离子存在的情况下,将
锡或
锗源和
硫属或
碲属源结合在反应容器中,其中R是饱和或不饱和的碳氢基,可以在无电荷和带电形式中相同或不同,并从反应混合物中回收基本纯的单
硫属或单
碲属化合物立方相。