The pure rotational spectrum of cyclobutane-d1 observed by microwave Fourier transform spectroscopy

✍ Scribed by B. Vogelsanger; W. Caminati; A. Bauder

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 488 KB
• Volume: 141
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(87)85018-2

✦ Synopsis

Pure rotational transitions of both equatorial and axial conformers of cyclobutane-d, in their vibronic ground state have been observed between 12 and 40 GHz with a pulsed microwave Fourier transform (MWFT) spectrometer. Twenty-four transitions of the equatorial as well as 29 transitions of the axial conformer with 3640 have been measured. Their assignment has been confirmed by microwave-microwave double-resonance experiments. Rotational constants and the quartic centrifugal distortion constants have been determined for both conformers from the measured frequencies. The r, structure has been deduced from these rotational constants.