کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5376113 1504317 2007 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Anharmonic bend-stretch coupling in neat liquid water
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Anharmonic bend-stretch coupling in neat liquid water
چکیده انگلیسی
Femtosecond mid-IR spectroscopy is used to study the vibrational relaxation dynamics in neat liquid water. By exciting the bending vibration and probing the stretching mode, it is possible to reliably determine the bending and librational lifetimes of water. The anharmonic coupling between the bending and the stretching degrees of freedom is quantified in terms of a differential absorption cross-section for the fundamental stretching transition carrying one spectating bending quantum. A positive off-diagonal anharmonicity may be caused by the initial excitation of the anharmonic bending mode and is mediated by the hydrogen bonded network.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 341, Issues 1–3, 15 November 2007, Pages 326-335
نویسندگان
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