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Featured researches published by G.A. Onopenko.


Molecular Physics | 2001

High resolution vibration-rotation spectrum of the D2O molecule in the region near the 2ν1 + ν2 + ν3 absorption band

Jing-Jing Zheng; O.N. Ulenikov; G.A. Onopenko; E.S. Bekhtereva; Sheng-Gui He; Xiang-Huai Wang; Shui-Ming Hu; Hai Lin; Qingshi Zhu

The high resolution Fourier transform spectrum of the D20 (ν = ν1 + ν2/2 + ν3 = 3.5) polyad was analysed within the framework of the Hamiltonian model taking into account resonance interactions between the seven states (310), (211), (112), (013), (230), (131) and (032). Transitions belonging to the 2ν1 + ν2 + ν3, 3ν1 +ν2 and 3ν2 + 2ν3 bands were assigned in the experimentally recorded spectrum. This provided the possibility of obtaining spectroscopic parameters of the ‘visible’ states (211), (310) and (032) and of estimating the band centres, and the rotational and resonance interaction parameters of the ‘dark’ states (112) and (131).


Molecular Physics | 2010

High resolution study of the ν5 + ν12 band of C2H4

O.N. Ulenikov; G.A. Onopenko; E.S. Bekhtereva; T.M. Petrova; A. M. Solodov; A. A. Solodov

The combination band ν5 + ν12 of ethylene, C2H4, has been recorded for the first time with a high resolution Fourier transform spectrometer Bruker IFS 125HR. Assignments of transitions and preliminary rotational analysis are made. Two models (Hamiltonian of the isolated vibrational state and Hamiltonian that takes into account resonance interactions) are used. Influence of the local resonance interactions on the parameters and reproduction power of the models is discussed.


Molecular Physics | 1997

HIGH RESOLUTION SPECTROSCOPIC STUDY OF H2SE (40+, 0) A1 AND (40-, 0) B2 STRETCHING STATES : NORMAL MODE AND LOCAL MODE ANALYSIS

Ze-Yi Zhou; Xiao-Gang Wang; Zhong-Ping Zhou; O.N. Ulenikov; G.A. Onopenko; Qingshi Zhu

High resolution spectra of the coupled and degenerate (40+, 0) A1 and (40-, 0) B2 (the local mode pair) states of H2Se are reported. The vibration–rotation transitions of H2 n Se (n = 80,78) were assigned by using the ground state combination differences and least-squares fits to yield the rotational and coupling constants for the two stretching states with degenerate band origins: υ0 (40+, 0) = 8894·504cm-1; υ0 (40-, 0) = 8894·504cm-1. Several striking local 0 0 mode limit effects and the formation of fourfold rovibrational energy clusters are observed and discussed.


Russian Physics Journal | 2002

Investigation of the Fine Rotational Structure of the Fourth (500; A1, E) Overtone of the AsH3 Molecule

G.A. Onopenko

The results of investigations into the high-resolution Fourier spectrum of the AsH3 molecule first registered in the range 9720–9900 cm–1 with a resolution of 0.015 cm–1 are given in the present paper. Lines of (500; A1) and (500; E) bands are interpreted by the method of combination differences. The spectroscopic constants of the examined arsine bands are determined by solving the inverse problem. They have allowed 98 rotational energy levels (with Jmax = 6) to be reproduced with errors close to the experimental ones.


Russian Physics Journal | 2002

Analysis of the Vibrational-Rotational Structure of 2ν1, ν1 + ν3, and 2ν3 Bands of the D2Se Molecule

E. A. Zhabina; G.A. Onopenko; O. N. Ulenikov; G. Burger; W. Jerzembeck

The absorption spectrum of the D2Se molecule in the region of 2ν1, ν1 + ν3, and 2ν3 absorption bands is registered with a high-resolution Fourier spectrometer and is studied theoretically for a Hamiltonian model with allowance for resonant interactions among (200), (101), and (002) vibrational states.


Journal of Quantitative Spectroscopy & Radiative Transfer | 2013

Re-analysis of the (100), (001), and (020) rotational structure of SO2 on the basis of high resolution FTIR spectra

O.N. Ulenikov; G.A. Onopenko; O.V. Gromova; E.S. Bekhtereva; V.-M. Horneman


Journal of Molecular Spectroscopy | 2001

High-Resolution Fourier Transform Spectrum of D2O in the Region Near 0.97 μm

O.N. Ulenikov; Shui-Ming Hu; E.S. Bekhtereva; G.A. Onopenko; Sheng-Gui He; Xiang-Huai Wang; Jing-Jing Zheng; Qingshi Zhu


Journal of Molecular Spectroscopy | 1999

On the Rotational Analysis of the Ground Vibrational State of CH3D Molecule

O.N. Ulenikov; G.A. Onopenko; N.E. Tyabaeva; J. Schroderus; S. Alanko


Journal of Molecular Structure | 2001

The ground vibrational states of PH2D and PHD2

O.N. Ulenikov; H. Bürger; W. Jerzembeck; G.A. Onopenko; E.S. Bekhtereva; O. L. Petrunina


Journal of Molecular Spectroscopy | 2000

High-Resolution Study of the (v1 + 12v2 + v3 = 3) Polyad of Strongly Interacting Vibrational Bands of D2O

O.N. Ulenikov; Sheng-Gui He; G.A. Onopenko; E.S. Bekhtereva; Xiang-Huai Wang; Shui-Ming Hu; Hai Lin; Qingshi Zhu

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O.N. Ulenikov

Tomsk Polytechnic University

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E.S. Bekhtereva

Tomsk Polytechnic University

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Qingshi Zhu

University of Science and Technology of China

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