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Fourier-Transform Microwave Spectroscopy of CCN (X2Π1/2)

✍ Scribed by Y. Ohshima; Y. Endo

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
379 KB
Volume
172
Category
Article
ISSN
0022-2852

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✦ Synopsis

The lowest (J=\frac{3}{2}-\frac{1}{2}) rotational transition of the (\mathrm{CCN}) radical in its (X^{2} \Pi_{1 / 2}) state has been observed by using a Fabry-Perot-type Fourier-transform microwave spectrometer combined with a pulsed discharge nozzle. The radical has been generated by a pulsed electric discharge of (\mathrm{CH}{3} \mathrm{CN}) or (\mathrm{CCl}{3} \mathrm{CN}) diluted in (\mathrm{Ar}), and subsequently cooled to a few degrees in a supersonic free jet. The spectrum with completely resolved fine and hyperfine structures has been analyzed to provide an accurate set of spectroscopic constants. The spin density and other electronic properties of the unpaired electron in the radical have been estimated from the determined hyperfine coupling constants associated with the nitrogen nucleus. (C) 1995 Academic Press. Inc

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