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Direct l-type doubling transitions in the ν6 = 1 vibrational state of CF3Br and CF3I: l-type resonance effects on the spin-rotation coupling

✍ Scribed by Carsten Gerke; Hauke Harder

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 519 KB
Volume: 255
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(96)00399-5

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✦ Synopsis

Direct /-type doubling transitions in the 06 = 1 state of CF379Br, CF3SIBr and CF3I have been observed using the technique of Fourier transform microwave spectroscopy in the range 4.5-8 GHz. The transitions covered a range of J values from 38-47 for both isotopomers of CF3Br and from 40-51 for CFaI. The transition frequencies including hyperfine structures could solely be explained by the (A k = + 2, A l = ___ 2)/-type resonance interaction including rotation-vibration, quadrupole and spin-rotation terms.

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## IN HONOR OF PROF. DR. HANS B ÜRGER FOR HIS MANY VALUABLE CONTRIBUTIONS TO SCIENCE The υ 6 = 2 vibrational state of the main isotopomer of trifluorosilane, 28 SiHF 3 , has been investigated in the centimeter-and millimeter-wave ranges. Rotational spectra following the J = 1, k = l = 0 selection