A study was conducted to demonstrate the effect of silane functionalities on silica surfaces to produce mononuclear ruthenium hydride species. The study found that the tuning silica by adding surface Si-H bonds generates a support that avoids aggregation of the metal at high temperatures of grafted [Ru(cod)(cot)]. The study found that silica covered with surface Si-H can react at room temperature with [Ru(cod)(cot)] at 300 °C to produce a highly unsaturated mononuclear ruthenium hydride species [Ru-H]. The study observed that modification of silica support can lead to the formation of a stronger Ru-Si bond instead of Ru-O bond upon grafting with [Ru(cod)(cot)]. The study also observed the stronger Ru-Si interaction can prevent aggregation and the growth of metal particles during treatment under H2 at high temperature.
ASJC Scopus subject areas
- Organic Chemistry