SEARCH Articles Figures Tables Alkenes 2 + 2] forbidden Allowed and forbidden Allowed and forbidden lines Allowed and forbidden reactions Allowedness and Forbiddenness Analysis (Allowed or Forbidden) Applications to Spin-Forbidden Reactions Available Programs for Modeling Spin-Forbidden Reactions Beryllium forbidden Carotenoids forbidden transition Chemical reactions forbidden Classically forbidden electronic Classically forbidden electronic transitions Classically forbidden region Concerted reactions symmetry forbidden Configuration interaction symmetry-forbidden reaction Correlation diagram symmetry-forbidden Correlation-diagram method symmetry-forbidden reactions Cycloaddition ground-state forbidden Cycloaddition reactions symmetry-forbidden thermal addition Cycloadditions forbidden Cycloadditions symmetry forbidden Dangerous goods forbidden in aircraft Diels-Alder reaction forbidden” cycloaddition Diels-Alder reactions photochemically forbidden Dipole forbidden Dipole forbidden resonance Dipole-forbidden state Dipole-forbidden transitions Electric dipole forbidden Electrocyclic ring opening thermally forbidden disrotatory Electron spin resonance spectra forbidden transitions Electron transfer reactions Spin forbidden Electron-excitation states optically forbidden Electronic spectroscopies dipole-forbidden transitions Electronic transitions, forbidden Electronic transitions, forbidden molecules Electronic transitions, forbidden oscillator strength Electronic transitions, forbidden radiation probability Electronic transitions, forbidden spectral strength Electronic transitions, forbidden systems Emission from “forbidden” transitions Excited state forbidden FORBIDDEN TRANSITIONS AND METASTABLE ATOMS Fluorescence forbiddenness Fluorescence spin-forbidden Forbidden Ams = 2 transition Forbidden Explosives for Transportation Forbidden Knowledge Forbidden Raman bands Forbidden Transitions Intensity Borrowing by Mixing with a Remote Perturber Forbidden atomic transitions Forbidden band Forbidden cyclizations Forbidden dangerous goods Forbidden decay modes Forbidden diffractions Forbidden energy band Forbidden energy gap Forbidden energy gaps in semiconductors Forbidden expls Forbidden face Forbidden gap Forbidden light Forbidden material Forbidden materials for transportation Forbidden optical transition Forbidden pericyclic reaction Forbidden process Forbidden reaction, Woodward-Hoffmann Forbidden reaction, Woodward-Hoffmann rules Forbidden reaction, definition Forbidden reactions Forbidden reactions formal frontier orbitals Forbidden rearrangements Forbidden reflections Forbidden region Forbidden spin exchange Forbidden symmetric stretch Forbidden transition Forbidden transition intensity borrowing Forbidden transition photochemistry Forbidden transition, 125 detectors Forbidden transitions in organic Forbidden transitions in organic and inorganic systems Forbidden transitions selection rules Forbidden transitions transition probabilities Forbidden transitions, between states Forbidden transitions, between states opposite symmetry Forbidden transitions, nonadiabatic transition Forbidden zone Forbidden, quantum mechanically Genuinely Forbidden Valence Isomerizations Graph forbidden Hydrogen shift symmetry forbidden Insecticides forbidden’ period Interactions forbidden transition Is the Use of Cyanogen Bromide Forbidden in Hospitals Laporte forbidden Laporte forbidden transition Laporte-forbidden ligand-field Laporte-forbidden ligand-field transitions Magnetic dipole transition forbidden Metastable atoms forbidden transitions Non-adiabaticity due to spin forbidden processes Optically forbidden electronic states Optically forbidden states Optically forbidden transitions Orbital symmetry allowedness/forbiddenness Oscillator parity forbidden Other Spin-Forbidden Reactions of Transition Metal Compounds Parity forbidden Parity forbidden states Parity forbidden transition Parity-allowed/forbidden transitions Pericyclic reactions forbidden, energy barriers Pericyclic reactions ground-state forbidden Phosphorescence spin-forbidden Photochemistry symmetry-forbidden Raman spectroscopy forbidden spectra Reactivity Trends in Allowed and Forbidden Reactions Selection rules forbidden Sigmatropic shifts forbidden, antarafacial Singlet normally forbidden Some Comments on Forbidden and Allowed Reactions Spectral lines forbidden Spin forbidden process Spin-Forbidden Reaction, Intersystem Crossing Spin-Forbidden Reactions with Triplet Oxygen Spin-forbidden Spin-forbidden absorption Spin-forbidden bands Spin-forbidden bands in compounds Spin-forbidden electric dipole transition Spin-forbidden nonadiabaticity Spin-forbidden radiative transition probabilities Spin-forbidden radiative transitions Spin-forbidden reactions Spin-forbidden reactions in transition metal chemistry Spin-forbidden substitution Spin-forbidden transitions Spin-forbidden transitions intensities Spin-forbidden transitions interactions Symmetric stretch, infrared forbidden Symmetry allowed and forbidden Symmetry controlled reactions forbidden Symmetry forbidden Symmetry forbidden chemical reactions Symmetry forbidden process Symmetry forbidden reactions, definition Symmetry-forbidden pathway Symmetry-forbidden reactions Symmetry-forbidden transitions The Forbidden World of Chemistry The benzvalene-benzene interconversion allowed or forbidden Thermally forbidden conversions Thermally forbidden disrotatory electrocyclic ring Transition, radiative forbidden Transition-group complexes, forbidden transitions Transition-group complexes, forbidden transitions electronic energies Transition-group complexes, forbidden transitions symmetry Transitions, electric-dipole forbidden/magnetic Transportation forbidden materials Triplet spin-forbidden Ultraviolet spectroscopy forbidden transitions Use of Cyanogen Bromide Forbidden in Hospitals Woodward-Hoffmann forbidden and allowed Woodward-Hoffmann forbidden and allowed reactions