Abstract
The high-resolution far-infrared spectrum of the intermolecular HC1 libration band v(4)(1) of the OC-H(35)C1 heterodimer is recorded in the gas phase by means of Fourier transform IR spectroscopy in a static multipass absorption cell at 137 K using a synchrotron radiation source. This is the first direct observation of an intermolecular vibration band of the OC-HC1 dimer in the gas phase. The rotational structure of the band has the typical appearance of a perpendicular band of a linear polyatomic molecule. The structure is analyzed to yield the band origin nu(0) = 201.20464(27) cm(-1) together with values for the upper state rotational constant, the upper state quartic and sextic centrifugal distortion constants, and the l-type doubling constant. The determined values for the rotational constant and the centrifugal distortion constants are used to obtain a Morse potential for the stretching of the intermolecular distance. The results are compared to the results from quantum-chemical calculations.
| Original language | English |
|---|---|
| Pages (from-to) | 1524-1530 |
| Journal | The Journal of Physical Chemistry Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory |
| Volume | 108 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2004 |
Bibliographical note
The information about affiliations in this record was updated in December 2015.The record was previously connected to the following departments: Chemical Physics (S) (011001060), Max-laboratory (011012005)
Subject classification (UKÄ)
- Atom and Molecular Physics and Optics