Definitions for "LUMO"
Lowest Unoccupied Molecular Orbital: Orbital with least energy without any electrons in it. Back to .
See Lowest Unoccupied Molecular Orbital.
(Lowest Unoccupied Molecular Orbital) The unoccupied molecular orbital having the lowest energy. In Frontier Molecular Orbital theory the LUMO plays a significant role in determining the course and barrier to reactions. The energy of the LUMO is a poor approximation of the EA.