The Bi³⁺ 6s and 6p electron binding energies in relation to the chemical environment of inorganic compounds

This paper provides an overview and interpretation of the spectroscopic data of the Bi³⁺ activator ion in 117 different inorganic compounds. The energies of the metal-to-metal charge transfer and the interconfigurational transitions of Bi³⁺ were collected from the archival literature. Using these energies, in combination with the electron binding energies in the host conduction and valence band, the binding energies in the 6s ground state and 6p excited state were determined relative to the vacuum level. The locations of the Bi³⁺ energy levels within the forbidden gap of the host compound provides valuable insight in the physical properties of the Bi³⁺ activator ion in different compounds.