کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9589516 | 1393808 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microwave spectra of the 35Cl and 37Cl isotopomers of dichloromethylene: Nuclear quadrupole-, spin-rotation-, and nuclear shielding constants from the hyperfine structures of rotational lines
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
The rotational spectra of the isotopomers C35Cl37Cl and C37Cl2 of dichloromethylene in the ground vibronic state were recorded in the range 10-33Â GHz using a molecular beam Fourier transform microwave spectrometer. CCl2 was generated by flash pyrolysis using different precursors. The observed spectra were analyzed to yield rotational and centrifugal distortion constants, as well as the complete Cl nuclear quadrupole coupling tensors and the spin-rotation interaction constants from the hyperfine structure of the rotational lines. With inclusion of data from previous work on the most abundant species C35Cl2 [N. Hansen, H. Mäder, F. Temps, Phys. Chem. Chem. Phys. (3) (2001) 50-55.] a refined r0 structure was determined. The spin-rotation interaction constants of all three isotopomers were used to derive 35Cl and 37Cl principal inertial axis nuclear magnetic shielding components which have not yet been determined by NMR spectroscopy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Spectroscopy - Volume 232, Issue 2, August 2005, Pages 375-379
Journal: Journal of Molecular Spectroscopy - Volume 232, Issue 2, August 2005, Pages 375-379
نویسندگان
T. Pancur, K. Brendel, N. Hansen, H. Mäder, V. Markov, F. Temps,