کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5415523 | 1393762 | 2009 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The microwave spectrum of the mono deuterated species of methyl formate HCOOCH2D
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The microwave spectrum of mono deuterated methyl formate (HCOOCH2D) was measured in three regions by Fourier transform microwave spectroscopy, conventional Stark modulation techniques, and submillimeter wave spectroscopy. Effects due to the large amplitude torsional motion of the partially deuterated CH2D methyl group were evidenced and lead to two sets of transitions. Both sets display a rigid-rotator behavior. In one of them, a small tunneling splitting ranging from 0 to 20Â MHz was observed. This splitting was accounted for using a phenomenological IAM-like treatment accounting for its rotational dependence. This model was used to analyze line frequencies of the 1388 measured microwave lines. The unitless standard deviation of the fit is 1.5 and the spectroscopic parameters obtained are consistent with the structure of the molecule and the nature of the large amplitude tunneling motion.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Spectroscopy - Volume 254, Issue 2, April 2009, Pages 55-68
Journal: Journal of Molecular Spectroscopy - Volume 254, Issue 2, April 2009, Pages 55-68
نویسندگان
L. Margulès, L.H. Coudert, H. Møllendal, J.-C. Guillemin, T.R. Huet, R. JaneÄkovà ,