دورية أكاديمية

Using molecular-dynamics simulations to understand and improve the treatment of anharmonic vibrations. II. Developing and assessing new Debye--Waller factors.

التفاصيل البيبلوغرافية
العنوان: Using molecular-dynamics simulations to understand and improve the treatment of anharmonic vibrations. II. Developing and assessing new Debye--Waller factors.
المؤلفون: Reilly, Anthony M., Morrison, Carole A., Rankin, David W. H., Mc Lean, K. Robin
المصدر: Acta Crystallographica: Section A (Wiley-Blackwell); Jul2011, Vol. 67 Issue 4, p346-356, 11p
مصطلحات موضوعية: CHEMICAL research, CURVILINEAR coordinates, LAGRANGIAN points, CRYSTALLOGRAPHY, PROBABILITY theory
مستخلص: The article presents a study that examines new anharmonic forms for the Debye-Waller factor aimed at modelling curvilinear and asymmetric motion. It shows that high-order even terms from the Gram-Charlier series may be important for modelling methyl-group libration. It reveals that molecular-dynamics data sets provide useful insights into the nature of anharmonic thermal motion. It suggests that addressing the problem in real space allows probability density functions (PDFs) to be developed.
قاعدة البيانات: Complementary Index
الوصف
تدمد:01087673
DOI:10.1107/S010876731101395X