Enhanced catalytic activity of titanosilicates controlled by hydrogen-bonding interactions†
Abstract
A typical volcano-shaped curve has been found in heterogeneous catalytic systems containing titanosilicates for the first time. A new reactive intermediate with double H-bonds is proposed. Systematic results clearly evidence another H-bond formed between the high-electronegativity atom of the H-bond acceptor and the Hend atom of Ti–Oα–Oβ–Hend.