1929 ⟶ Linus Pauling Publishes Pauling's Rules for X-ray Crystallography
Linus Pauling publishes Pauling's rules, which are key princ...
Year
1928
1929
1937
1939
1951
1958
⚛️ Diels-Alder Reaction: Cycloaddition for Ring Molecule Formation
Otto Diels and Kurt Alder discovered the Diels-Alder cycloaddition reaction for forming ring molecules.⟶
ChemistryOrganic ChemistryChemical ReactionCycloadditionDiels-Alder ReactionSynthetic ChemistryMolecular Structure20th Century
Germany🔬 Linus Pauling Publishes Pauling's Rules for X-ray Crystallography
Linus Pauling publishes Pauling's rules, which are key principles for the use of X-ray crystallography to deduce molecular structure.⟶
ChemistryX-ray CrystallographyMolecular StructureLinus PaulingPauling's RulesCrystallographyStructural Chemistry20th Century
United States🧬 Dorothy Crowfoot Hodgkin discovers the three-dimensional structure of cholesterol
Dorothy Crowfoot Hodgkin discovered the three-dimensional structure of cholesterol.⟶
BiochemistryX-ray CrystallographyDorothy Crowfoot HodgkinCholesterolOrganic ChemistryStructure Determination20th CenturyMolecular Structure
United Kingdom🧪 Linus Pauling Publishes The Nature of the Chemical Bond
Linus Pauling publishes The Nature of the Chemical Bond, a compilation of a decades worth of work on chemical bonding. It is one of the most important modern chemical texts. It explains hybridization theory, covalent bonding and ionic bonding as explained through electronegativity, and resonance as a means to explain, among other things, the structure of benzene.⟶
ChemistryChemical BondingLinus PaulingMolecular StructureCovalent BondingIonic BondingHybridizationElectronegativityResonance1930s
United States🔬 Deduction of Protein Secondary Structure
Linus Pauling uses X-ray crystallography to deduce the secondary structure of proteins.⟶
BiologyBiophysicsProtein StructureX-ray CrystallographyLinus PaulingSecondary StructureMolecular BiologyStructural Biology
United States🔬 Protein Structure Elucidated via X-ray Crystallography
Max Perutz and John Kendrew use X-ray crystallography to elucidate a protein structure, specifically sperm whale myoglobin.⟶
X-ray CrystallographyProtein StructureMyoglobinMolecular BiologyMax PerutzJohn Kendrew
United Kingdom