Titanosiloxanes consisting of tetrahedrally coordinated Ti cores and branched siloxane cages

Abstract

Well-defined titanosiloxane molecules with tetrahedrally coordinated Ti centers were synthesized by using monosilanol-functionalized siloxane cages as building blocks. The Ti sites are modified with –OSi(OSi)₃ units, which is analogous to Ti-containing zeolites. Such titanosiloxane molecules are important as models for Ti-containing silica-based catalysts.