Rotational States of NH+4in Dilute Solution in Alkali Halide Lattices. III. Calculated Energy Levels of NH+4in KBr

Additional high-resolution lines in the ν3 CO2 fundamental band of the rovibrational spectrum of He2-CO2 have been observed using a tunable infrared laser to probe a pulsed supersonic jet expansion. The ro-vibrational spectrum was calculated using Euler angles and five vibrational coordinates that specify the positions of the He atoms with respect to the CO2 molecule, a product basis, and a Lanczos eigensolver. Rotational states with J = 0, 1, 2, and 3 associated with the vibrational ground state and different states (νt) of the torsional motion of the two He atoms about the CO2 axis are identified and assigned. The assignment is consistent with having different principle axis orientiations in νt = 0 and νt = 1 states. Δνt = 1 infrared transistions are forbidden due to the symmetry of CO2, but Δνt = 1 microwave transistions are possible. Theoretical line positions and intensities are predicted. Good agreement between experiment and theory was obtained. The calculated energy levels and intensities were crucial in assigning some of the weaker observed transitions.

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Calculated energy levels for 92Mo and 94Ru

Physics Letters B ◽

10.1016/0370-2693(69)90014-8 ◽

1969 ◽

Vol 29 (3) ◽

pp. 182-184 ◽

Cited By ~ 27

Author(s):

J.B. Ball ◽

J.B. McGrory ◽

R.L. Auble ◽

K.H. Bhatt

Keyword(s):

Energy Levels ◽

Calculated Energy

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Semiclassical perturbation Stark shifts of singly charged argon spectral lines

Monthly Notices of the Royal Astronomical Society ◽

10.1093/mnras/stz1835 ◽

2019 ◽

Vol 488 (2) ◽

pp. 2473-2479

Author(s):

Rafik Hamdi ◽

Nabil Ben Nessib ◽

Sylvie Sahal-Bréchot ◽

Milan S Dimitrijević

Keyword(s):

Energy Levels ◽

Relativistic Correction ◽

Spectral Lines ◽

Oscillator Strengths ◽

Perturbation Approach ◽

Hartree Fock ◽

Calculated Energy ◽

Impact Approximation ◽

Singly Charged ◽

Experimental Values

AbstractUsing semiclassical perturbation approach in impact approximation, Stark shifts for singly charged argon (Ar ii) spectral lines have been calculated. Energy levels and oscillator strengths needed for this calculation were determined using Hartree–Fock method with relativistic correction (HFR). We compare our results with experimental values for 100 spectral lines. We also present results as a function of temperature for 161 spectral lines for collisions with electrons, protons, singly charged helium and singly charged argon. This work extends our previous one.

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Spectra of Ni- and Co-like ions of Xe in an electron-beam ion trap

Canadian Journal of Physics ◽

10.1139/p07-180 ◽

2008 ◽

Vol 86 (3) ◽

pp. 467-475 ◽

Cited By ~ 2

Author(s):

E Träbert ◽

P Beiersdorfer ◽

M F Gu

Keyword(s):

Electron Beam ◽

High Resolution ◽

Ion Trap ◽

Energy Levels ◽

X Ray ◽

Calculated Energy ◽

Electron Beam Ion Trap ◽

34.50 Fa

High-resolution soft X-ray observations of Ni- and Co-like Xe ions in an electron-beam ion trap are compared with the predictions of various calculations. Calculated energy levels up to the 4p levels are presented alongside experimental determinations. PACS Nos.: 32.30.Rj; 34.50.Fa; 34.80.Dp

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