Heteronuclear NMR Correlations To Probe the Local Structure of Catalytically Active Surface Aluminum Hydride Species on γ‐Alumina

Abstract

Surface details: Aluminum hydrides supported on partially dehydroxylated alumina have been synthesized through the hydrogenolysis of grafted alkyl precursors. The key feature in multinuclear NMR studies with these species is the strong dipolar coupling between 1H and 27Al nuclei. In HMQC correlations, Al–H entities were identified by filtering out the signal of the Al2O3 bulk (see picture). These main-group-metal hydrides catalyze both ethylene polymerization and hydrogenation. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.