کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5415576 1506769 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Millimeter-wave spectroscopy of α-alanine
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Millimeter-wave spectroscopy of α-alanine
چکیده انگلیسی
Millimeter-wave spectroscopy of α-alanine was carried out by using continuous molecular beam. The sample of α-alanine was heated up to 200-210 °C, and flowed with Ar buffer gas through a nozzle with a 0.4 mm diameter. Fifty-five lines of conformer I and 35 lines of conformer IIa of α-alanine were newly measured in 80-99 and 160-180 GHz regions. A least-squares analysis of the presently observed transitions combined with the previously observed millimeter-wave data below 72 GHz and Fourier transform microwave data gave a set of improved molecular constants which are useful for prediction of the transition frequencies in high frequency region. The rotational temperature of conformer I in the continuous molecular beam was estimated to be 29.9 ± 6.5 K.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Spectroscopy - Volume 251, Issues 1–2, September–October 2008, Pages 314-318
نویسندگان
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