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Infrared spectra of seeded hydrogen clusters: (para-H2)N–N2O and (ortho-H2)N–N2O, N=2–13
Infrared spectra of seeded hydrogen clusters: (para-H2)N–N2O and (ortho-H2)N–N2O, N=2–13
- Source :
- The Journal of Chemical Physics. 123:114314
- Publication Year :
- 2005
- Publisher :
- AIP Publishing, 2005.
-
Abstract
- High-resolution infrared spectra of clusters containing para-H2 and/or ortho-H2 and a single nitrous oxide molecule are studied in the 2225-cm(-1) region of the upsilon1 fundamental band of N2O. The clusters are formed in pulsed supersonic jet expansions from a cooled nozzle and probed using a tunable infrared diode laser spectrometer. The simple symmetric rotor-type spectra generally show no resolved K structure, with prominent Q-branch features for ortho-H2 but not para-H2 clusters. The observed vibrational shifts and rotational constants are reported. There is no obvious indication of superfluid effects for para-H2 clusters up to N=13. Sharp transitions due to even larger clusters are observed, but no definite assignments are possible. Mixed (para-H2)N-(ortho-H2)M-N2O cluster line positions can be well predicted by linear interpolation between the corresponding transitions of the pure clusters.
- Subjects :
- Jet (fluid)
Hydrogen
Infrared
Chemistry
infrared spectra
General Physics and Astronomy
chemistry.chemical_element
Infrared spectroscopy
nitrogen compounds
Spectral line
hydrogen neutral molecules
rotational states
molecular clusters
superfluidity
vibrational
Physics::Atomic and Molecular Clusters
Cluster (physics)
Molecule
gas phase
Physical and Theoretical Chemistry
Atomic physics
rotational
infrared spectroscopy
vibrational states
Line (formation)
Subjects
Details
- ISSN :
- 10897690 and 00219606
- Volume :
- 123
- Database :
- OpenAIRE
- Journal :
- The Journal of Chemical Physics
- Accession number :
- edsair.doi.dedup.....1436811984b0531e5d1b74c0ae66806b
- Full Text :
- https://doi.org/10.1063/1.2032989