1931 ⟶ Hückel's Rule Predicts Aromaticity
Erich Hückel proposes Hückel's rule, which explains when a p...
Year
1865
1931
1932
⚛️ Kekulé's Discovery of Benzene Ring Structure
Friedrich August Kekulé von Stradonitz realized that benzene is composed of carbon and hydrogen atoms in a hexagonal ring.⟶
ChemistryOrganic ChemistryKekuléBenzeneMolecular Structure19th CenturyStructural FormulaChemical Bonding
Germany🔷 Kekulé Establishes Structure of Benzene
Friedrich August Kekulé von Stradonitz, based partially on the work of Loschmidt and others, establishes structure of benzene as a six carbon ring with alternating single and double bonds.⟶
ChemistryOrganic ChemistryKekuléBenzeneMolecular Structure19th CenturyStructural FormulaChemical Bonding
Germany⚛️ Hückel's Rule Predicts Aromaticity
Erich Hückel proposes Hückel's rule, which explains when a planar ring molecule will have aromatic properties.⟶
Organic ChemistryAromaticityHückel's RulePlanar Ring MoleculesMolecular StructureTheoretical ChemistryHückelChemical Bonding
Germany🔗 Pauling and Mulliken Quantify Electronegativity
Linus Pauling and Robert Mulliken quantify electronegativity, devising the scales that now bear their names.⟶
ChemistryElectronegativityPaulingMullikenChemical BondingMolecular PropertiesChemical ScalesTheoretical Chemistry
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