Zeolite-Encaged Isolated Platinum Ions Enable Heterolytic Dihydrogen Activation and Selective Hydrogenations

• DOI: 10.1021/jacs.1c09535
• Publication Date: 2021-12-02T19:45:05Z
• Authors: Xin Deng; Bin Qin; Runze Liu; Xuetao Qin; Weili Dai; Guangjun Wu; Naijia Guan; Ding Ma; Landong Li
• Keywords: Heterolysis; Sodalite

Understanding the unique behaviors of atomically dispersed catalysts and origin thereof is a challenging topic. Herein, we demonstrate facile strategy to encapsulate Ptδ+ species within Y zeolite reveal nature selective hydrogenation over Pt@Y model catalyst. The configuration Pt@Y, namely stabilized by surrounding oxygen atoms six-membered rings shared sodalite cages supercages, enables exclusive heterolytic activation dihydrogen Ptδ+···O2- units, resembling well-known classical Lewis pairs. charged hydrogen species, i.e., H+ Hδ-, are active reagents for hydrogenations, therefore, catalyst exhibits remarkable performance in α,β-unsaturated aldehydes unsaturated alcohols nitroarenes arylamines.