Abstract
This study explores the determination of the range-determining parameter in the orbital-specific (OS) range-separated hybrid functional by the linearity condition for orbital energies. The OS range-separated hybrid functionals with the optimized range-determining parameters exhibit a less fractional-occupation- number electron dependence for orbital energies and successfully estimate ionization potentials for valence as well as inner valence and core orbitals in the sense of Koopmans' theorem.
Original language | English |
---|---|
Pages (from-to) | 245-251 |
Number of pages | 7 |
Journal | International Journal of Quantum Chemistry |
Volume | 113 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2013 Feb 5 |
Keywords
- Hartree-Fock exchange
- linearity condition for orbital energies
- orbital-specific hybrid functional
- range separation
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Physical and Theoretical Chemistry