Local mode interpretation of the CH and CD stretching vibrational manifolds of isotopic ethylenes, C 2H 3D and C 2HD 3
Abstract
The IR spectra of C 2H 3D and C 2HD 3 have been studied up to 3 quanta of excitation of CH and CD stretching (<9500 cm -1). Observed vibrational wavenumbers are well reproduced in terms of a local mode model, which involves different Fermi resonance interactions in each molecule. Equivalent harmonic and anharmonic parameters determined from refinements to 65 vibration levels in C 2H 3D and 33 in C 2HD 3 are in excellent agreement with each other, and also with those determined for other isotopic ethylenes.
- Publication:
-
Spectrochimica Acta Part A: Molecular Spectroscopy
- Pub Date:
- February 1993
- DOI:
- 10.1016/0584-8539(93)80169-B
- Bibcode:
- 1993AcSpA..49..149D