کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5415111 | 1393739 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-resolution FTIR measurement and analysis of the ν3 band of C2H3D
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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 Fourier transform infrared (FTIR) spectrum of the ν3 band of C2H3D was measured at an unapodized resolution of 0.0063 cmâ1 in the 1240-1340 cmâ1 region. Rovibrational constants for the upper state (ν3 = 1) up to five quartic and two sextic centrifugal distortion terms had been obtained by assigning and fitting a total of 1037 infrared transitions using a Watson's A-reduced Hamiltonian in the Ir representation. The root-mean-square deviation of the fit was 0.00051 cmâ1. The ground state rovibrational constants were also determined by a fit of 674 combination differences together with 21 microwave frequencies from the present infrared measurements with a root-mean-square deviation of 0.00040 cmâ1. The upper state (ν3 = 1) and ground state rovibrational constants of C2H3D represent the most accurate values obtained so far. The A-type ν3 band, centred at 1288.788826 ± 0.000044 cmâ1 was found to be relatively free from local frequency perturbations. From the ν3 = 1 rovibrational constants obtained, the inertial defect Î3 was 0.1619724 ± 0.0000001 μÃ
2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Spectroscopy - Volume 261, Issue 2, June 2010, Pages 119-123
Journal: Journal of Molecular Spectroscopy - Volume 261, Issue 2, June 2010, Pages 119-123
نویسندگان
G.B. Lebron, T.L. Tan,