The
Next-to-
Highest
Occupied
Molecular
Orbital ('
NHOMO', also called '
HOMO') and the
Second
Lowest
Unoccupied
Molecular
Orbital
(
SLUMO). Subjacent orbitals are sometimes found to play an important role in the interpretation
of molecular interactions according to the
frontier orbital approach.
Source:
PAC, 1994, 66, 1077
(Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994))
on page 1169