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Potential Energy Curves of Hydrogen Halides HX(F, Cl, Br) with the i-DMFT Method
Di Liu1, Marinela Irimia2, Jian Wang3
1Institute of atomic and molecular physics, Jilin University, Changchun 130012, China.
Abstract:
The information entropy based on the occupation numbers has been found to play a central role in a description of electron correlation within the density-matrix functional theory [i-DMFT, see Phys. Rev. Lett. 2022, 128, 013001]. In this article, the i-DMFT method is applied to predict potential energy curves, equilibrium bond lengths, and harmonic vibrational frequencies for the hydrogen halides: HF, HCl, and HBr. The results are compared with other theoretical calculations and experimental spectroscopic data.
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