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Improved Theoretical Ground-State Energy of the Hydrogen Molecule

Kolos, W., Wolniewicz, L.·1968·The Journal of Chemical Physics

Abstract

The potential-energy curve for the electronic ground state of the hydrogen molecule has been calculated for 1 ≤ R ≤ 3.2 a.u. in double precision and using a 100-term expansion for the electronic wavefunction. Accuracy of the previously computed diagonal corrections for nuclear motion has been tested. The vibrational equation has been solved for all isotopes of the hydrogen molecule and for the rotational quantum number J ≤ 10. The calculated adiabatic dissociation energy of H2, corrected for relativistic and radiative effects, is by 3.8 cm−1 larger than the experimental value, hence the theoretical total energy is by the same amount lower than the experimental value. The calculated vibrational quanta for H2 are by 0.5–0.9 cm−1 larger than the experimental ones.

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Metadata

Authors
Kolos, W., & Wolniewicz, L.
Venue
The Journal of Chemical Physics
Published
1968-07-01
Volume
49
Issue
1
Pages
404-410
ISSN
  • 0021-9606 (ISSN-L)
  • 1089-7690
OpenAlex
W1984152548
Cited by
597
References
0
FWCI
8.46
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Improved Theoretical Ground-State Energy of the Hydrogen Molecule. https://app.cochat.ai/papers/10.1063/1.1669836
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Kolos, W., & Wolniewicz, L. (1968). Improved Theoretical Ground-State Energy of the Hydrogen Molecule. The Journal of Chemical Physics. https://doi.org/10.1063/1.1669836

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