Non-hydrolytic pathways to silica and analogues and molecular models of silica surfaces with oxygen defects and Si=O groups (D03)

该项目致力于开发史无前例的非水解性合成方法，以生成定义明确的二氧化硅及其重同系物的分子模型。在成功地(无水)合成和分离了第一个施主稳定的单体SiX_2(X=O，S，Se，Te)和Si(CO_3)_2络合物的基础上，我们将研究它们的水解反应，以生成Si(OH)_4和相关化合物。环-Si6Cl12及其硅氧基和烷氧基取代物作为缺氧二氧化硅分子模型和前驱体的适用性有待进一步研究。

The project is devoted to the development of unprecedented non-hydrolytic synthetic methods for the generation of well-defined molecular models of silica and its heavy homologues. Building upon the successful (‘water-free’) synthesis and isolation of the first donor-stabilised monomeric SiX, SiX2 (X = O, S, Se, Te) and Si(CO3)2 complexes, their hydrolysis will be studied to generate Si(OH)4 and related compounds. The suitability of cyclo-Si6Cl12 and its siloxy- and alkoxy-substituted derivatives to serve as molecular models and precursors of oxygen-deficient silicas will further be investigated.