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Mid-infrared laser absorption spectroscopy of the Ne–NO(X2Π) complex.
- Source :
-
Journal of Chemical Physics . 9/7/2019, Vol. 151 Issue 9, pN.PAG-N.PAG. 6p. 1 Chart, 5 Graphs. - Publication Year :
- 2019
-
Abstract
- The rovibrational spectrum of the Ne–NO(X2Π) open-shell complex has been measured in the 5.3 µm region using distributed feed-back quantum cascade lasers to probe the direct absorption in a slit-jet supersonic expansion. Three P-subbands (P′ ← P″: 1/2 ← 1/2, 3/2 ← 1/2, and 5/2 ← 3/2) were observed, where P is the projection of the angular momentum J along the inertial a-axis of the complex. The hyperfine structure due to the nuclei spin of 14N (I = 1) was partially resolved in the P′ ← P″: 1/2 ← 1/2 and 3/2 ← 1/2 subbands. The observed mid-infrared spectrum of Ne–NO (X2Π) together with the previously reported microwave spectrum was analyzed using a modified semirigid asymmetric rotor Hamiltonian for a planar open-shell complex. The band origin is located at 1876.0606(97) cm−1, which is blue-shifted from that of the NO monomer by only 0.0888 cm−1. The complex shows strong structural relaxation upon excitation of the overall rotation and the internal rotation of the NO subunit. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00219606
- Volume :
- 151
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Journal of Chemical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 138480116
- Full Text :
- https://doi.org/10.1063/1.5115319