Enantioselectivity on Naturally Chiral Metal Surfaces
Enantioselective heterogeneous catalysis requires surfaces with structures that are chiral at the atomic level. It is possible to obtain naturally chiral surfaces from crystalline inorganic materials with chiral bulk structures. It is also possible to create naturally chiral surfaces from achiral materials by exposing surfaces that have atomic structures with no mirror symmetry planes oriented perpendicular to the surface. Over the past decade there have been a number of experimental and theoretical demonstrations of the enantiospecific physical phenomena and surface chemistry that arise from the adsorption of chiral organic compounds on the naturally chiral, high Miller index places of metals.
KeywordsStep Edge Temperature Program Desorption Spectrum Stereographic Triangle Kink Site Chiral Surface
The author’s work in the field of naturally chiral surfaces has been supported by the National Science Foundation, the US Department of Energy and by Merck Corp. The author is also indebted to his collaborators: D.S. Sholl, E.C. Sykes, S.S. Perry, and P.A. Salvador. The work on this problem in his research group has been performed by C.F. McFadden, P. Cremer, J.D. Horvath, A.J. Koritnik, Y. Huang, V. Pushkarev, L. Baker, and W.C. Cheong.
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