Abstract
We have investigated the physical and chemical behaviour of pure-, mixed-, layered-, and thin-solid films of CO and CH4 using Fourier Transform Infrared Spectroscopy. Very little difference exists between the sublimation behaviour of the films. In contrast, a significant spectral feature was observed at similar to2136 cm(-1) only in the mixed CO:CH4 films, and was replicated by ab initio calculations on the gas-phase CO-CH4 complex. The complex is due to a 'pseudo-double pi-hydrogen bond', with binding energy of around 14 kJ mol(-1). To the best of our knowledge this is the first report of this complex.
Original language | English |
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Pages (from-to) | 178-184 |
Number of pages | 7 |
Journal | Chemical Physics Letters |
Volume | 378 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 29 Aug 2003 |
Keywords
- carbon monoxide
- infrared spectra
- ices
- matrices