https://doi.org/10.1351/goldbook.08212
Second Lowest Unoccupied Molecular Orbital (SLUMO).
Note:
Subjacent and superjacent orbitals sometimes play an important role in the interpretation of molecular interactions according to the frontier orbital approach.
Subjacent and superjacent orbitals sometimes play an important role in the interpretation of molecular interactions according to the frontier orbital approach.