188612-43-3Relevant academic research and scientific papers
Base-catalyzed cleavage and homologation of polyhedral oligosilsesquioxanes
Feher, Frank J.,Terroba, Raquel,Ziller, Joseph W.
, p. 2153 - 2154 (2007/10/03)
Readily available Cy6Si6O9 2 (Cy = c-C6H11) reacts with aqueous NEt4OH in THF to afford endo-C(2h)-Cy6Si6O7(OH)4 3a, which upon further hydrolysi
Silsesquioxanes as Models for Silica Surfaces
Feher, Frank J.,Newman, David A.,Walzer, John F.
, p. 1741 - 1748 (2007/10/02)
The hydrolytic condensation of cyclohexyltrichlorosilane (CySiCl3) affords (1), (2), and (3a).Trisilanol 1 and 3b, the bis(triphenyltin) derivative of 3a, have been structurally characterized by single-crystal X-ray diffraction studies.Trisilanol 1 undergoes corner-capping reactions with trifunctional monomers (e.g., R'SiCl3, MeGeCl3, MeSnCl3), is selectively monosilylated to (6a) with chlorotrimethylsilane, and can be dehydrated to (7a).Comparison of the molecular structure of 1 with (111) β-cristobalite and (0001)β-tridymite reveals many structural similarities.Silsesquioxanes 1, 6a, and 7a are discussed as models for silica surfaces.
