Free jet absorption millimeter wave spectrum of 2,4′-dipyridyl

The free jet millimeter wave spectrum of 2,4′-dipyridyl has been investigated in the frequency range 60–78 GHz. The two pyridine rings are tilted with respect to each other by 22.7°. Each rotational transition is split into two component lines due to the torsional motion connecting 4 equivalent mini...

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Bibliographic Details
Published in:Chemical physics letters 1997-08, Vol.274 (1), p.47-50
Main Authors: Favero, Laura B., Favero, Paolo G., Dell'Erba, A., Caminati, Walther
Format: Article
Language:English
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Summary:The free jet millimeter wave spectrum of 2,4′-dipyridyl has been investigated in the frequency range 60–78 GHz. The two pyridine rings are tilted with respect to each other by 22.7°. Each rotational transition is split into two component lines due to the torsional motion connecting 4 equivalent minima. The lower of the two barriers to inversion, corresponding to the planar configuration, has been calculated to be 45 cm −1.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(97)00667-2