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High-Resolution Analysis of the ν6, ν17, and ν21 Bands of Dimethyl Ether

✍ Scribed by L.H. Coudert; P. Çarçabal; M. Chevalier; M. Broquier; M. Hepp; M. Herman

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
381 KB
Volume
212
Category
Article
ISSN
0022-2852

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✦ Synopsis

The ν 6 , ν 17 , and ν 21 fundamental bands of dimethyl ether have been assigned and rotationally analyzed. The spectra used were recorded at 0.005 cm -1 spectral resolution with a Fourier-transform spectrometer coupled to a supersonic molecular beam leading to a rotational temperature of about 70 K. The ν 6 and ν 21 bands do not seem to be perturbed and the analysis of the rotational structure leads to band centers located at 933.906 6(9) and 1 103.951(1) cm -1 , respectively, and to accurate rotational and centrifugal distortion constants. For the ν 17 band at 2817.385(2) cm -1 , only the P and R branches could be assigned.

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