| Download | - View accepted manuscript: Infrared spectra of OCS-C6H6, OCS-C6H6-He, and OCS-C6H6-Ne van der Waals complexes (PDF, 207 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1063/1.3430571 |
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| Author | Search for: Dehghany, M.; Search for: Oliaee, J. Norooz; Search for: Afshari, Mahin; Search for: Moazzen-Ahmadi, N.; Search for: McKellar, A. R. W.1 |
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| Affiliation | - National Research Council of Canada. NRC Steacie Institute for Molecular Sciences
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| Format | Text, Article |
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| Abstract | The infrared spectrum of weakly bound OCS–C6H6 is studied in the region of the ν1 fundamental band of OCS ( ~ 2050 cm−1) using a tunable diode laser spectrometer to probe a pulsed supersonic jet expansion. This is one of the first direct infrared observations of a benzene-containing van der Waals complex. A very simple band is observed, corresponding to the parallel transition of a symmetric top. It is shifted by −11.1 cm−1 with respect to the free OCS monomer. The isotopologues OCS–13C 12C5H6 and OC 34S–C6H6 are observed, and the derived structure has OCS located along the benzene C6 symmetry axis in an S-bonded configuration with a center of mass separation of 4.42 Å, in good agreement with previous microwave spectra. Similar bands are observed for the trimers OCS–C6H6–He and OCS–C6H6–Ne, whose structure is obtained by adding an on-axis rare gas atom to the other side of the benzene. However, the analogous band for OCS–C6H6–Ar is not detected, raising the possibility that the stable form of this trimer may not have the same symmetrical structure. A “mystery” feature is observed close to the OCS–C6H6 band origin and its possible assignment to a cluster such as OCS–(C6H6)3 is discussed. |
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| Publication date | 2010-05-17 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 17653063 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | edc4a332-029c-4666-81fe-76c3825c455b |
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| Record created | 2011-03-31 |
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| Record modified | 2020-09-09 |
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