Surface Science Meets Homogeneous Catalysis. Surfaces as Activators and Ligands
Tobin Marks is Ipatieff Professor of Catalytic Chemistry, Professor of Materials Science and Engineering, Professor of Applied Physics, and Professor of Chemical and Biological Engineering at Northwestern University. He obtained a BS degree in Chemistry from the University of Maryland and a PhD in Inorganic Chemistry from MIT. His major recognitions include the U.S. National Medal of Science, the Spanish Principe de Asturias Prize, the Materials Research Society Von Hippel Award, the Dreyfus Prize in the Chemical Sciences, the National Academy of Sciences Award in Chemical Sciences, the American Chemical Society Joseph Priestley Medal, and the Israel Harvey Prize. He is a member of the U.S., German, Indian, and Italian National Academies of Sciences, the U.S. National Academy of Engineering, the American Academy of Arts and Sciences, and the U.S. National Academy of Inventors. He is a Fellow of the U.K. Royal Society of Chemistry, the Materials Research Society, and the American Chemical Society. Marks has published 1350 peer-reviewed articles and holds 205 issued U.S. patents. He holds Honorary Doctorate Degrees from Hong Kong University of Science and Technology, the University of South Carolina, the Ohio State University, and the Technical University of Munich.
When chemisorbed upon certain surfaces, the reactivity of many types of organometallic molecules is dramatically enhanced in ways that historically have been poorly understood. High activities for a variety of catalytic reactions are illustrative consequences of this altered reactivity. This lecture focuses on the intricate non-covalent and covalent multi-center interactions that modulate these catalytic processes, focusing primarily on polymerization and hydrogenation/dehydrogenation processes. Specific interrelated topics include: 1) Catalytic chemistry of mononuclear and multinuclear d0 catalysts anchored on/activated by surfaces versus those in homogeneous solution, 2) Catalytic chemistry and cooperativity effects in multinuclear groups 4 and 6 catalysts in homogeneous solution, 3) Definitive structural characterization of these catalysts on “super-acidic” oxide surfaces, and the broad scope of their catalytic properties, 4) Unusual catalytic chemistry of group 6 dioxo complexes adsorbed on activated carbon surfaces. It will be seen that the information obtained from these studies leads to design rules for next-generation homogeneous and supported catalysts, and for novel and useful polymerization and hydrogenation/-dehydrogenation processes, including the catalytic detoxification of gasoline, stereoselective aromatics hydrogenation, biofeedstock trans-esterification, and bio-alcohol dehydrogenation.