Communication: Spectroscopic evidence for a planar cyclic CO trimer

Communication: Spectroscopic evidence for a planar cyclic CO trimer

A high-resolution spectrum in the region of 2144 cm(-1) is assigned to the previously elusive CO trimer. In spite of interference from the CO dimer and some remaining unexplained details, there is strong evidence for a planar, cyclic, C-bonded trimer structure, with C(3h) symmetry and 4.42 Å intermo...

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Veröffentlicht in:The Journal of chemical physics 2013-02, Vol.138 (7), p.071102-071102
Hauptverfasser: Rezaei, Mojtaba, Sheybani-Deloui, S, Moazzen-Ahmadi, N, Michaelian, K H, McKellar, A R W
Format: Artikel
Sprache:eng
Schlagworte:
Carbon monoxide
Dimers
Interference
Mathematical analysis
Separation
Spectroscopy
Symmetry
Trimers
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Zusammenfassung:A high-resolution spectrum in the region of 2144 cm(-1) is assigned to the previously elusive CO trimer. In spite of interference from the CO dimer and some remaining unexplained details, there is strong evidence for a planar, cyclic, C-bonded trimer structure, with C(3h) symmetry and 4.42 Å intermolecular separation, in agreement with theoretical calculations. A modest vibrational blueshift of +0.85 cm(-1) is observed for the CO trimer, as compared to +0.71 cm(-1) for the C-bonded form of the dimer.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.4793220