Comments on the paper “Exact and Poisson summation thermodynamic properties for diatomic molecules with shifted Tietz potential”

Ridha Horchani*, Haikel Jelassi

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review


Ikot et al. (Indian J Phys 93:1171, 2019) showed an analytical solution of the stationary Schrodinger equation for cesium dimers Cs2 at the electronic state (33Σg+) with the shifted Tietz–Wei potential. We point out, however, a miscalculation in solving this equation which had led to erroneous conclusions, particularly about the energy eigenvalues, the partition function and all derived thermodynamic properties. By the way, we present the right expression of the rotational–vibrational energy which shows an excellent agreement with the experimental data.

Original languageEnglish
Pages (from-to)373-375
Number of pages3
JournalIndian Journal of Physics
Issue number2
Publication statusPublished - Feb 2022


  • Dimers
  • Partition function
  • Rotational–vibrational energy
  • Shifted Tietz–Wei potential
  • Thermodynamics properties

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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