کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1617808 1005695 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phase transition in [Ca(NH3)6](ClO4)2 studied by neutron scattering methods and far infrared spectroscopy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Phase transition in [Ca(NH3)6](ClO4)2 studied by neutron scattering methods and far infrared spectroscopy
چکیده انگلیسی
► FT-FIR spectra and diffraction patterns vs. temperature showed that phase transition is probably associated with a change of the crystal structure. ► Fast stochastic molecular reorientational motions of NH3 ligands do not change their character in the wide temperature range. ► High temperature phase is dynamically orientationally disordered phase. ► Low value of the activation energy for NH3 ligands reorientation suggests that this motion proceeds through the translation-rotation coupling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 509, Issue 23, 9 June 2011, Pages 6545-6550
نویسندگان
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