Katz group's catalyst in a 0.7 nm golf-ball dimple on a zeolite external surface

First unequivocal example of partial confinement of a catalyst on an external surface: see 1) “Dynamic Reorganization and Confinement of TiIV Active Sites Controls Olefin Epoxidation Catalysis on Two-Dimensional Zeotypes” by N. A. Grosso-Giordano, A. S. Hoffman, A. Boubnov, D. W. Small, S. R. Bare, S. I. Zones, A. Katz, Journal of the American Chemical Society 2019, 141, 7090 – 7106; 2) “Outer-Sphere Control of Catalysis on Surfaces: A Comparative Study of Ti(IV) Single-Sites Grafted on Amorphous versus Crystalline Silicates for Alkene Epoxidation” by N. A. Grosso-Giordano, C. Schroeder, A. Okrut, A. Solovyov, C. Schottle, W. Chasse, N. Marinkoyic, H. Koller, S. I. Zones, A. Katz, Journal of the American Chemical Society 2018, 140, 4956 – 4960; 3) “Characterization of a Molecule Partially Confined at the Pore Mouth of a Zeotype” by N. A. Grosso-Giordano, C. Schroeder, L. Xu, A. Solovyov, D. W. Small, H. Koller, S. I. Zones, A. Katz, Angew. Chem. Int. Ed. Engl. 2021, 60, 10239 – 10246.

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