کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5415221 | 1393744 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The ν12 band of ethylene-1-13C (13C12CH4) by high-resolution FTIR spectroscopy
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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 ν12 fundamental band of ethylene-1-13C (or 13C12CH4) was recorded with an unapodized resolution of 0.0063 cmâ1 in the wavenumber region of 1360-1520 cmâ1. Rovibrational constants for the upper state (ν12 = 1) up to five quartic and two sextic centrifugal distortion terms were derived for the first time by assigning and fitting a total of 879 infrared transitions using a Watson's A-reduced Hamiltonian in the Ir representation. The root-mean-square deviation of the fit was 0.00066 cmâ1. The ground state rovibrational constants were also determined by a fit of 523 combination-differences from the present infrared measurements, with a rms deviation of 0.00090 cmâ1. The A-type ν12 band which is centred at 1439.34607 ± 0.00004 cmâ1 was found to be relatively free from local frequency perturbations. From the ν12 = 1 rovibrational constants obtained, the inertial defect Î12 was found to be 0.242826 ± 0.000002 μÃ
2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Spectroscopy - Volume 261, Issue 1, May 2010, Pages 63-67
Journal: Journal of Molecular Spectroscopy - Volume 261, Issue 1, May 2010, Pages 63-67
نویسندگان
T.L. Tan, G.B. Lebron,