Noun
English Wikipedia has an article on:molecular orbital theoryWikipedia
molecular orbital theory (uncountable) (Abbreviated as MO theory)
(physics, chemistry) A method of determining the structure of a molecule by assuming that electrons are not fixed to bonds between individual atoms
More sophisticated models embrace covalency, and this approach is described by ligand field theory (LFT) and Molecular orbital theory (MO). Source: Internet
Molecular orbital theory predicts a stable "curocene" complex (η 8 -C 8 H 8 ) 2 Cm, but it has not been reported experimentally yet. Source: Internet