1874 ⟶ van 't Hoff and Le Bel Propose Tetrahedral Carbon

Jacobus van 't Hoff and Joseph-Achille Le Bel advanced a thr...
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Year
1857
1873
1874

⚛️ Friedrich August Kekulé proposes carbon tetravalence

Friedrich August Kekulé von Stradonitz proposes that carbon is tetravalent, or forms exactly four chemical bonds.⟶
Friedrich August Kekulé proposes carbon tetravalence (1857)
Carbon TetravalenceMolecular StructureFriedrich August KekuléOrganic ChemistryChemical Bonds19th CenturyChemistry
GermanyGermany

🧪 van 't Hoff and Le Bel Develop Model of Chemical Bonding

Jacobus Henricus van 't Hoff and Joseph Achille Le Bel, working independently, develop a model of chemical bonding that explains the chirality experiments of Pasteur and provides a physical cause for optical activity in chiral compounds.⟶
van 't Hoff and Le Bel Develop Model of Chemical Bonding (1873)
StereochemistryChemical BondingChiralityOptical ActivityOrganic Chemistryvan 't HoffLe Bel19th Century Science
NetherlandsNetherlandsFranceFrance

💨 van der Waals Postulates Intermolecular Forces

Johannes Diderik van der Waals: was one of the first to postulate an intermolecular force: the van der Waals force.⟶
van der Waals Postulates Intermolecular Forces (1873)
Intermolecular Forcesvan der Waals ForcePhysical Chemistry19th Century Sciencevan der WaalsMolecular Interactions
NetherlandsNetherlands

🔺 van 't Hoff and Le Bel Propose Tetrahedral Carbon

Jacobus van 't Hoff and Joseph-Achille Le Bel advanced a three-dimensional stereochemical representation of organic molecules and propose a tetrahedral carbon atom.⟶
van 't Hoff and Le Bel Propose Tetrahedral Carbon (1874)
StereochemistryTetrahedral CarbonOrganic ChemistryMolecular Structurevan 't HoffLe Bel19th Century Science
NetherlandsNetherlandsFranceFrance