Example image of eyePlorer eyePlorer map for 'Frontier Molecular Orbital Theory': HOMO/LUMO Molecular orbital theory Kenichi Fukui Roald Hoffmann Robert Burns Woodward Woodward–Hoffmann rules Antarafacial and suprafacial Antiaromaticity Aromaticity Cycloaddition Pericyclic reaction Transition state Cyclopentadiene Diels–Alder reaction Maleic anhydride Stereoselectivity 1,3-Butadiene Ethylene Endo-exo isomerism Symmetry Sigmatropic reaction Antibonding Electrocyclic reaction Conrotatory and disrotatory FMO