Rotational spectrum of 13C17O and 13C18O: completely resolved nuclear hyperfine structures due to 13C and 17O

✍ Scribed by C Puzzarini; L Dore; G Cazzoli

• Book ID: 104151722
• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 183 KB
• Volume: 217
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1016/s0022-2852(02)00048-6

✦ Synopsis

The pure rotational spectrum of 13 C 17 O has been observed in the millimeter-and submillimeter-wave region using the Lamb-dip technique in order to increase the instrumental resolving power and so to resolve both the hyperfine structure due to 17 O and that due to 13 C. In this way very accurate values of the rotational and centrifugal distortion constants, the 17 O nuclear electric quadrupole coupling constant and the 17 O and 13 C spin-rotation constants have been obtained. In addition, the J ¼ 1 0 and J ¼ 2 1 transitions of 13 C 18 O have been recorded using the Lamb-dip technique. The resolved hyperfine structure of these transitions allowed us to determine the rotational and 13 C spin-rotation constants. The experimental determination of all these parameters has been supported by ab initio computations.