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

该项目致力于开发前所未有的非水解合成方法，用于生成定义良好的二氧化硅分子模型及其重同源物。在成功（“无水”）合成和分离第一个供体稳定单体SiX， SiX2 （X = O， S, Se, Te）和Si(CO3)2配合物的基础上，将研究它们的水解以生成Si(OH)4和相关化合物。环si6cl12及其硅氧基和烷氧基取代衍生物作为缺氧二氧化硅的分子模型和前驱体的适用性将进一步研究。

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.