کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5426852 1395910 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Using β-hydride elimination to test propositions for characterizing surface catalyzed reactions
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Using β-hydride elimination to test propositions for characterizing surface catalyzed reactions
چکیده انگلیسی

We describe the transition states determined using plane wave Density Functional Theory (DFT) for the β-hydride elimination reaction RCH2O(ad) → RCHO(ad) + H(ad) on Cu(1 1 1) for R = H, CH3, CH2F, CHF2, and CF3. Our results allow us to assess qualitative descriptions of these transition states based on previous experiments. Our calculations confirm that the character of the transition state is unaffected by fluorine substituents and the transition state for the forward reaction is late. By considering β-hydride elimination from adsorbed methoxy on multiple metal surfaces using DFT, we have examined the hypothesis that surface catalyzed reactions with product-like transition states are more structure sensitive than reactions with reactant-like transition states.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 600, Issue 3, 1 February 2006, Pages L25-L28
نویسندگان
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