Please wait a minute...
Chinese Physics, 2005, Vol. 14(3): 634-641    DOI: 10.1088/1009-1963/14/3/037
GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS Prev  

Overtone spectrum of SiH stretching in H2SiCl2

Chen Ping (陈平)a, Zhu Huai (朱淮)b, Hao Lu-Yuan (郝绿原)a, Hu Shui-Ming (胡水明)a, Liu An-Wen (刘安雯)a, Zheng Jing-Jing (郑晶晶)a, Ding Yun (丁昀)a
a Bond Selective Chemistry, University of Science and Technology of China, Hefei 230026, China; b Department of Basic Education for Information, Anhui College of Traditional Chinese Medicine, Hefei 230038, China
Abstract  The overtone spectra of H2SiCl2 molecule in the regions of 2000—9000cm-1 and 12000—12900cm-1 at room temperatures have been studied by use of high-resolution Fourier transform spectroscopy and sensitive-intracavity-laser absorption spectroscopy, respectively. The variations of vibrational quantum numbers ΔVSiH=1, 2, 3, 4 and 6 for the overtones of the SiH stretching have been analysed and assigned with the local mode model and the normal mode model. The values of harmonic frequency ωm, anharmonicity constant χm, bond coupling constant λ, the Morse oscillator parameters De, α, and interaction force constant frr are derived from the experimental spectrum with nonlinear least-squares fitting. The most striking feature of the SiH2Cl2 is that the larger the vibrational energy, the smaller the energy difference between a couple of lowest stretching states of a given manifold, and finally, the couple of lowest stretching states are degenerated within the experimental error for ΔVSiH≥4 vibrational manifolds. The degenerate energy level structure resembles that of a diatomic Morse oscillator; the transition energies show a remarkable fit to the Birge—Sponer relation. The high vibrational states can be described straightforward with a SiH diatomic Morse oscillator wavefunction, this is an indication of vibrational bond localization.
Keywords:  local mode      normal mode      stretching vibration      molecular symmetry  
Received:  04 September 2003      Revised:  02 November 2004      Accepted manuscript online: 
PACS:  33.20.Ea (Infrared spectra)  
  33.20.Tp (Vibrational analysis)  
  33.15.Mt (Rotation, vibration, and vibration-rotation constants)  
  33.15.Fm (Bond strengths, dissociation energies)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 10274077, 20103007 and 29703007).

Cite this article: 

Chen Ping (陈平), Zhu Huai (朱淮), Hao Lu-Yuan (郝绿原), Hu Shui-Ming (胡水明), Liu An-Wen (刘安雯), Zheng Jing-Jing (郑晶晶), Ding Yun (丁昀) Overtone spectrum of SiH stretching in H2SiCl2 2005 Chinese Physics 14 634

[1] Tunable optomechanically induced transparency and fast-slow light in a loop-coupled optomechanical system
Qinghong Liao(廖庆洪), Xiaoqian Wang(王晓倩), Gaoqian He(何高倩), and Liangtao Zhou(周良涛). Chin. Phys. B, 2021, 30(9): 094205.
[2] Zero-point fluctuation of hydrogen bond in water dimer from ab initio molecular dynamics
Wan-Run Jiang(姜万润)†, Rui Wang(王瑞)†, Xue-Guang Ren(任雪光), Zhi-Yuan Zhang(张志远), Dan-Hui Li(李丹慧), and Zhi-Gang Wang(王志刚)‡. Chin. Phys. B, 2020, 29(10): 103101.
[3] Influence of vibration on spatiotemporal structure of the pattern in dielectric barrier discharge
Rong Han(韩蓉), Li-Fang Dong(董丽芳), Jia-Yu Huang(黄加玉), Hao-Yang Sun(孙浩洋), Bin-Bin Liu(刘彬彬), Yan-Lin Mi(米彦霖). Chin. Phys. B, 2019, 28(7): 075204.
[4] The universal characteristic water content of aqueous solutions
Xiao Huang(黄晓), Ze-Xian Cao(曹则贤), Qiang Wang(王强). Chin. Phys. B, 2019, 28(6): 065101.
[5] A passive source ranging method based on the frequency warping transform of the vertical intensity flux in shallow water
Yu-Bo Qi(戚聿波), Shi-Hong Zhou(周士弘), Meng-Xiao Yu(于梦枭), Shu-Yuan Du(杜淑媛), Mei Sun(孙梅), Ren-He Zhang(张仁和). Chin. Phys. B, 2019, 28(5): 054302.
[6] Observation of double pseudowaves in an ion-beam-plasma system
Zi-An Wei(卫子安), Jin-Xiu Ma(马锦秀), Kai-Yang Yi(弋开阳). Chin. Phys. B, 2018, 27(8): 085201.
[7] Gravitational quasi-normal modes of static R2 Anti-de Sitter black holes
Hong Ma(马洪), Jin Li(李瑾). Chin. Phys. B, 2017, 26(6): 060401.
[8] Spatial correlation of the high intensity zone in deep-water acoustic field
Jun Li(李鋆), Zheng-Lin Li(李整林), Yun Ren(任云). Chin. Phys. B, 2016, 25(12): 124310.
[9] High-order harmonic generation of CO2 with different vibrational modes in an intense laser field
Hui Du(杜慧), Hong-Dan Zhang(张宏丹), Jun Zhang(张军), Hai-Feng Liu(刘海凤), Xue-Fei Pan(潘雪飞), Jing Guo(郭静), Xue-Shen Liu(刘学深). Chin. Phys. B, 2016, 25(11): 113201.
[10] Investigation of long-range sound propagation in surface ducts
Duan Rui (段睿), Yang Kun-De (杨坤德), Ma Yuan-Liang (马远良). Chin. Phys. B, 2013, 22(12): 124301.
[11] The effect of fractional thermoelasticity on a two-dimensional problem of a mode I crack in a rotating fiber-reinforced thermoelastic medium
Ahmed E. Abouelregal, Ashraf M. Zenkour. Chin. Phys. B, 2013, 22(10): 108102.
[12] Impurity-induced local modes in one-dimensional dusty plasma chains
Ren Yong-Chao (任永超), Wang Xin-Shang (王欣上), Wang Xiao-Gang (王晓钢 ). Chin. Phys. B, 2012, 21(11): 115201.
[13] Mode-I crack in a two-dimensional fibre-reinforced generalized thermoelastic problem
Kh. Lotfy . Chin. Phys. B, 2012, 21(1): 014209.
[14] Determining the long living quasi-normal modes of relativistic stars
Lü Jun-Li(吕君丽) and Suen Wai-Mo(孙纬武) . Chin. Phys. B, 2011, 20(4): 040401.
[15] Normal mode splitting and ground state cooling in a Fabry–Perot optical cavity and transmission line resonator
Chen Hua-Jun(陈华俊) and Mi Xian-Wu(米贤武) . Chin. Phys. B, 2011, 20(12): 124203.
No Suggested Reading articles found!