Theory of Field Desorption

摘要: The theory of field desorption proposed previously has been extended by a more detailed quantum‐mechanical calculation the rate constants for various cases, including an attempt to evaluate matrix elements electronic transition when latter is slow. A simple, generalized model chemisorption on metals presented and used in these calculations. It found that two‐electron transitions lead somewhat smaller than one‐electron transitions, but effect not very large. In general, one‐dimensional leads with essentially normal pre‐exponential terms, except under conditions where adsorbate tunneling becomes important. tentative explanation compensation effect, i.e., decreases term decreasing activation energy observed experimentally number different given terms changes reaction path temperature.