کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5375489 | 1504297 | 2009 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Vibrational dynamics of the linear and bent isomers of HF-N2O trapped in 0.4Â K helium nanodroplets
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Vibrational dynamics of the linear and bent isomers of HF-N2O trapped in 0.4Â K helium nanodroplets Vibrational dynamics of the linear and bent isomers of HF-N2O trapped in 0.4Â K helium nanodroplets](/preview/png/5375489.png)
چکیده انگلیسی
Infrared (IR)-IR double resonance spectroscopy is used to probe the isomerization dynamics of helium solvated HF-N2O following the vibrational excitation of one of two stable isomers on the intermolecular potential energy landscape. An upstream pump laser excites the H-F stretching fundamental of either the linear ONN-HF or the bent NNO-HF isomer, while a downstream probe laser is scanned through the bands of both isomers to test for photo-induced isomerization. Vibrational excitation of the H-F stretch mode leads to the isomerization of a fraction of the upstream population, regardless of the identity of the pumped isomer. The measured isomer interconversion is consistent with vibrational predissociation followed by geminate recombination. A fraction of the upstream population is unaccounted for by the downstream probe. We propose that a fraction of the missing population is due to the mismatch in the timescales of complex recombination and pump, probe events.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 361, Issues 1â2, 30 June 2009, Pages 118-124
Journal: Chemical Physics - Volume 361, Issues 1â2, 30 June 2009, Pages 118-124
نویسندگان
Gary E. Douberly, Roger E. Miller,