title: Spin-state splittings, highest-occupied-molecular-orbital and lowest-unoccupied-molecular-orbital energies, and chemical hardness.
authors.affiliation: School of Natural Sciences, University of California, Merced, Merced, California 95343, USA.
authors.forename: Erin R
authors.initials: ER
authors.lastname: Johnson
authors.forename: Weitao
authors.initials: W
authors.lastname: Yang
authors.forename: Ernest R
authors.initials: ER
authors.lastname: Davidson