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Chin. Phys. B, 2008, Vol. 17(12): 4485-4491    DOI: 10.1088/1674-1056/17/12/026
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

A new analysis of the $\nu_2$ fundamental band of H2O+

Zheng Rui (郑锐), Li Song (李松), Hou Shun-Yong (侯顺永), Huang Guang-Ming (黄光明), Duan Chuan-Xi (段传喜)
College of Physical Science and Technology, HuaZhong Normal University, Wuhan 430079, China
Abstract  This paper reports that the absorption spectra of H2O+ have been measured by tunable mid-infrared diode laser spectroscopy in the spectral range of 1100--1380cm-1. The H2O+ ions are generated in an AC glow discharge of the gaseous mixtures of H2O/He and detected with the velocity modulation technique. Forty new lines are assigned to the $\nu_2$ fundamental band of H2O+ ($\tilde{X}^2B_1$). The observed lines together with other data published previously are fitted to the standard effective Hamiltonian of an asymmetric top, yielding a set of improved rotational constants, spin-rotation constants and their quartic and sextic centrifugal distortion constants for the $\nu_2=1$ vibrational state of H2O+.
Keywords:  infrared spectra      water cations      rotational analysis  
Received:  14 March 2008      Revised:  08 April 2008      Accepted manuscript online: 
PACS:  33.20.Sn (Rotational analysis)  
  33.15.Mt (Rotation, vibration, and vibration-rotation constants)  
  33.20.Tp (Vibrational analysis)  
  33.20.Wr (Vibronic, rovibronic, and rotation-electron-spin interactions)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 10544002 and 10604019).

Cite this article: 

Zheng Rui (郑锐), Li Song (李松), Hou Shun-Yong (侯顺永), Huang Guang-Ming (黄光明), Duan Chuan-Xi (段传喜) A new analysis of the $\nu_2$ fundamental band of H2O+ 2008 Chin. Phys. B 17 4485

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