Broad line millimeter-wave resonator spectroscopy is shown to have high sensitivity and fast and broad frequency scanning possibilities. Methods of absolute measurement of separate line, sample, and resonator losses are demonstrated and discussed. The primary radiation source (BWO) frequency is cont
Millimeter-Wave Spectroscopy of Sulfur Dichloride
โ Scribed by L. Bizzocchi; L. Cludi; C. Degli Esposti; A. Giorgi
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 122 KB
- Volume
- 204
- Category
- Article
- ISSN
- 0022-2852
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โฆ Synopsis
2 excited states, have been studied in selected frequency regions between 100 and 370 GHz. Transitions involving a large range of quantum numbers have been observed, so that precise rotational and quartic centrifugal distortion constants could be determined for each of the spectra investigated. The complete set of sextic distortion constants was also obtained for the most abundant isotopomer in its ground vibrational state. The newly determined rotational constants of 34 S 35 Cl 2 and 32 S 37 Cl 2 allowed us to calculate the complete r s structure of sulfur dichloride using both single-and double-isotopic substitution methods. The quadratic force field has been refined using a larger set of quartic distortion constants and inertial defects.
๐ SIMILAR VOLUMES
The rotational spectra of the unstable HCCCP molecule have been investigated in the millimeter-wave region for the main excited vibrational states which lie below 1000 cm ฯช1 , namely 4 (COC stretch), 5 (HCC bend), 6 (CCC bend), 7 (CCP bend), 2 6 , 2 7 , 3 7 , 4 7 , 5 ฯฉ 7 , and 6 ฯฉ 7 . l-type resonan