85-1 Saturated Polyatomic Molecules 85-1-1. Delocalized Molecular Orbital Molecular Orbital Theory 20218/21 Chemistry Departme nt of Fudan UniversityPhysical ChemistryI Chapter V Polyatomic Molecular Structure 2021/8/21 Chemistry Department of Fudan University 2 §5-1. Saturated Polyatomic Molecules §5-1-1. Delocalized Molecular Orbital Molecular Orbital Theory