What Does HOMO Stand For?

HOMO stands for Highest Occupied Molecular Orbital

HOMO, or Highest Occupied Molecular Orbital, refers to the molecular orbital that contains the highest energy electrons within a molecule. In the context of molecular orbital theory, it plays a critical role in determining the chemical reactivity and stability of a compound, as it represents the frontier between occupied and unoccupied molecular states. The characteristics of the HOMO, such as its energy level and shape, can influence various chemical behaviors, including electron donation and acceptor properties in reactions.