Infrared diode laser spectroscopy of O2–N2O van der Waals complex in the ν1 symmetric stretch region of N2O

doi:10.1088/1674-1056/23/12/123301

中国物理B ›› 2014, Vol. 23 ›› Issue (12): 123301-123301.doi: 10.1088/1674-1056/23/12/123301

• ATOMIC AND MOLECULAR PHYSICS • 上一篇下一篇

Infrared diode laser spectroscopy of O₂–N₂O van der Waals complex in the ν₁ symmetric stretch region of N₂O

李松^{a b}, 郑锐^c, 段传喜^a

a College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China;
b College of Physical Science and Technology, Yangtze University, Jingzhou 434023, China;
c School of Mathematics & Information Science, North China University of Water Resources and Electric Power, Zhengzhou 450011, China

收稿日期:2014-04-16 修回日期:2014-07-15 出版日期:2014-12-15 发布日期:2014-12-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grants Nos. 11174098, 11304023, and 11304095).

Infrared diode laser spectroscopy of O₂–N₂O van der Waals complex in the ν₁ symmetric stretch region of N₂O

Li Song (李松)^{a b}, Zheng Rui (郑锐)^c, Duan Chuan-Xi (段传喜)^a

a College of Physical Science and Technology, Central China Normal University, Wuhan 430079, China;
b College of Physical Science and Technology, Yangtze University, Jingzhou 434023, China;
c School of Mathematics & Information Science, North China University of Water Resources and Electric Power, Zhengzhou 450011, China

Received:2014-04-16 Revised:2014-07-15 Online:2014-12-15 Published:2014-12-15
Contact: Duan Chuan-Xi E-mail:cxduan@phy.ccnu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grants Nos. 11174098, 11304023, and 11304095).

摘要/Abstract

摘要：

The rovibrational spectrum of O₂–N₂O van der Waals complex is measured in the v₁ symmetric stretch region of N₂O monomer using a tunable diode laser spectrometer. The complex is generated by a slit-pulsed supersonic expansion with gas mixtures of O₂, N₂O, and He. Both a- and b-type transitions are observed. The effective Hamiltonian for an open-shell complex consisting of a diatomic molecule in a ³Σ electronic state and a closed-shell partner is used to analyze the observed spectrum. Molecular constants in the vibrationally excited state are determined accurately. The band-origin of the spectrum is determined to be 1284.7504(25) cm^-1, red-shifted from that of the N₂O monomer by ～ 0.1529 cm^-1.

关键词: rovibrational spectrum, van der Waals complex, intermolecular interactions

Abstract: The rovibrational spectrum of O₂–N₂O van der Waals complex is measured in the v₁ symmetric stretch region of N₂O monomer using a tunable diode laser spectrometer. The complex is generated by a slit-pulsed supersonic expansion with gas mixtures of O₂, N₂O, and He. Both a- and b-type transitions are observed. The effective Hamiltonian for an open-shell complex consisting of a diatomic molecule in a ³Σ electronic state and a closed-shell partner is used to analyze the observed spectrum. Molecular constants in the vibrationally excited state are determined accurately. The band-origin of the spectrum is determined to be 1284.7504(25) cm^-1, red-shifted from that of the N₂O monomer by ～ 0.1529 cm^-1.

Key words: rovibrational spectrum, van der Waals complex, intermolecular interactions

中图分类号: (Rotation, vibration, and vibration-rotation constants)

33.15.Mt

33.20.Ea (Infrared spectra) 36.40.Mr (Spectroscopy and geometrical structure of clusters)

李松, 郑锐, 段传喜. Infrared diode laser spectroscopy of O₂–N₂O van der Waals complex in the ν₁ symmetric stretch region of N₂O[J]. 中国物理B, 2014, 23(12): 123301-123301.

Li Song (李松), Zheng Rui (郑锐), Duan Chuan-Xi (段传喜). Infrared diode laser spectroscopy of O₂–N₂O van der Waals complex in the ν₁ symmetric stretch region of N₂O[J]. Chin. Phys. B, 2014, 23(12): 123301-123301.

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Infrared diode laser spectroscopy of O₂–N₂O van der Waals complex in the ν₁ symmetric stretch region of N₂O

Infrared diode laser spectroscopy of O₂–N₂O van der Waals complex in the ν₁ symmetric stretch region of N₂O

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