 Molecular term symbol

Molecular term symbols are a notation used in molecular spectroscopy and quantum chemistry to describe the electronic states of molecules. These symbols provide important information about the energy levels and symmetries of molecular states which are pivotal in understanding electronic transitions, bonding characteristics, and other physical properties of molecules. A molecular term symbol generally follows the notation of: \[ ^{2S+1}L_J \] where: - **S** is the total spin angular momentum quantum number.