Bending force constants for weakly bound dimers AB (A = symmetric top, B = linear molecule) from centrifugal distortion in rotational spectra

✍ Scribed by A.C. Legon; D.G. Lister

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 490 KB
• Volume: 238
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(95)00391-6

✦ Synopsis

The contribution of the harmonic intermolecular bending force field to the quartic centrifugal distortion constants of weakly bound dimers Al3 (where A is a symmetric-top molecule and B is a linear molecule) has been examined. Approximate formulae are derived that relate the force constant and the vibrational wavenumber for the oscillation of the A subunit to the combination 2 DJ + DJK of distortion constants. These formulae are applied to 35 dimers, and a generalisation is made.