Microwave direct absorption spectroscopy of weakly-bound clusters in a planar supersonic jet: Spectra of Ar-HCN and (HCN)2 from 17.4 to 76.7 GHz
✍ Scribed by R.E. Bumgarner; Geoffrey A. Blake
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 602 KB
- Volume
- 161
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
A direct absorption microwave and millimeterwave spectrometer capable of observing the rotational transitions of weaklybound complexes formed in a planar supersonic nozzle has been constructed. Both the technique for observing weakly-bound complexes and its initial application to Ar-HCN and (HCN)r are described. The Ar-HCN lines reported here show significant frequency discrepancies (up to -3 187.2 MHz) from predictions using previously obtained constants with distortion treatments through sixth order in J, reflecting the strong angular-radial coupling and pervasive intermolecular vibrational state mixing in this complex.