Centrifugal distortion and internal rotation in the microwave spectrum of acetaldehyde

✍ Scribed by Paul H. Turner; A.Peter Cox

• Publisher: Elsevier Science
• Year: 1976
• Tongue: English
• Weight: 491 KB
• Volume: 42
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(76)80556-8

✦ Synopsis

The microwave spectra of sym-CHa DCHO and sym_CHDaCHO have been measured. In the ground torsional state, the spectra correspond to localised conformers with only a small amount of sym-asym coupling. Apphcation of Watson's reduced haniltonia~ has enabled precise distortion constants free from internal rotation effects to be determmed. These constants have been compared with values calculated from the harmonic force field. An anomaly in the Q-branch, i(_r = 3 series of symCHz DCHO has also been observed. ' _Voiume 42, number I _ CHEMICAL PHYSICS LETTERS I.