کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5373492 1504222 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Vibrational relaxation of NO3−(aq)
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Vibrational relaxation of NO3−(aq)
چکیده انگلیسی


- Infrared transient absorption spectroscopy of aqueous nitrate after UV excitation.
- Vibrational relaxation of aqueous nitrate dominated by intermolecular energy transfer.
- Vibrational relaxation after return to ground state occurs on 2 ps timescale.

The vibrational energy relaxation following UV excitation of nitrate ions in aqueous solution is investigated by infrared transient absorption spectroscopy. The experiments show that after their return to the electronic ground state the nitrate ions relax to the vibration ground state with a time constant of 2 ps. The experimental data are compared to simulations of two relaxation scenarios in which the nitrate molecules either relax by intra-molecular vibrational redistribution or by inter-molecular energy transfer. The comparison suggests that the energy relaxation is dominated by the latter.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 442, 17 October 2014, Pages 86-92
نویسندگان
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