On the vibronic coupling approximation: A generally applicable approach for determining fully quadratic quasidiabatic coupled electronic state Hamiltonians

2007 ◽  
Vol 127 (9) ◽  
pp. 094104 ◽  
Author(s):  
Michael S. Schuurman ◽  
David R. Yarkony
Keyword(s):  
Electronic State ◽  
Vibronic Coupling ◽  
Coupling Approximation

Rotational Structure in the Absorption Spectrum of SO2 between 3000 Å and 3300 Å

1975 ◽  
Vol 53 (23) ◽  
pp. 2555-2576 ◽  
Author(s):  
Y. Hamada ◽  
A. J. Merer
Keyword(s):  
Absorption Spectrum ◽  
Electronic State ◽  
Intensity Distribution ◽  
Ground State ◽  
Electronic Transition ◽  
Wavelength Region ◽  
Vibronic Coupling ◽  
Banded Structure ◽  
Vibrational Levels ◽  
Type C

Rotational analyses have been carried out, with varying degrees of completeness, for nine bands of S16O2 and two bands of S18O2 in the region 3000–3300 Å. The bands are all highly perturbed type C bands, which go to b2 vibrational levels of the ππ* Ã1A2 electronic state. The [Formula: see text] electronic transition shows an anomalous vibrational intensity distribution, which indicates that the Ã1A2 state undergoes strong Born–Oppenheimer (nuclear momentum) vibronic coupling with the [Formula: see text] electronic state. All the obvious banded structure in this wavelength region can be assigned to the [Formula: see text] transition. Although no analyses of bands belonging to the [Formula: see text] transition have been carried out (since the [Formula: see text] state is so massively perturbed by the ground state), reasons are presented for placing its (0,0) band between 3100 and 3160 Å.

The fluorescence spectrum of NO2: rotationally-forbidden bands and their interpretation

1977 ◽  
Vol 55 (16) ◽  
pp. 1453-1461 ◽  
Author(s):  
H. D. Bist ◽  
J. C. D. Brand ◽  
A. R. Hoy
Keyword(s):  
Excited State ◽  
Electronic State ◽  
Fluorescence Spectrum ◽  
Quantum Number ◽  
Ground State ◽  
Vibronic Coupling ◽  
Gas Pressure ◽  
Initial State ◽  
Final State ◽  
Vibrational Levels

Fluorescence of NO2 excited near 5000 Å at low gas pressure is predominantly 'parallel' in type, i.e., the values of the quantum number K in the initial state of the excitation, the intermediate (excited) state, and the final state(s)of the emission are all equal, Ki = K′ = Kf. However, a considerable number of the weaker fluorescence bands do not conform to this pattern; instead, they correspond to even-parity differences between the initial and final value of K, |Kf − Ki| = 2, 4, or 6, indicating that K (though not N) is a poor quantum number in the upper electronic state of the excitation–emission sequence. The observations are analyzed in terms of a mechanism in which the vibronic coupling between the 2B2 excited state and high vibrational levels of the ground state creates conditions where the asymmetry of the 2B2 basis state produces unexpectedly large couplings between hybrid states of the same parity in K.

E-Market of State Purchases in Russia

2005 ◽  
pp. 121-130 ◽  
Author(s):  
V. Ryabtsun
Keyword(s):  
Electronic State ◽  
Legal Basis ◽  
Siberian Region ◽  
Federal Target Program ◽  
Target Program

Legal basis and development of systems of electronic state purchases in Russia with special attention to the federal target program "Electronic Russia (2002-2010)" are considered in the article. The level of development of such systems is examined within the case of their functioning in the Ural-Siberian region. The results of the work of state purchases e-market in Novosibirsk and Chelyabinsk are presented.

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