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forming carbon–carbon bonds via Grignard reagents."}, "https://codexery.com/chemistry-materials/e/chemistry-and-materials/organic-chemistry/": {"t": "Organic chemistry", "s": "Study of carbon compounds, basis of life and industry."}, "/e/organic-chemistry-and-reaction-mechanisms/e-z-notation/": {"t": "E–Z notation", "s": "IUPAC method for double-bond stereochemistry using priority rules."}, "/e/organic-chemistry-and-reaction-mechanisms/cis-trans-isomerism/": {"t": "Cis–trans isomerism", "s": "Geometric isomerism describes cis and trans arrangements of atoms.", "i": "https://codexery.com/organic-chemistry-and-reaction-mechanism/img/organic-chemistry-and-reaction-mechanisms/cis-trans-isomerism.webp", "c": "Jü · Public domain"}, "https://codexery.com/languages/e/languages/latin/": {"t": "Latin", "s": "A classical language of the Italic branch, Latin evolved into the Romance languages and remained a key scholarly tongue into the early 19th century."}, 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"https://codexery.com/classical-mechanics-and-dynamics/e/classical-mechanics-and-dynamics/rotation/": {"t": "Rotation", "s": "Rotational motion leaves at least one point unchanged."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/rotamer/": {"t": "Rotamer", "s": "Rotamers are conformers differing by single-bond rotation."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/stereochemistry/": {"t": "Stereochemistry", "s": "The study of spatial arrangements of atoms in molecules and their manipulation."}, "https://codexery.com/biochemistry-and-cell-biology/e/biochemistry-and-cell-biology/carbohydrate/": {"t": "Carbohydrate", "s": "Carbohydrates are sugars and their derivatives, central to life and nutrition."}, "https://codexery.com/botany-plant-biology/e/botany-and-plant-biology/starch/": {"t": "Starch", "s": "A polysaccharide energy store in plants and human staple."}, "https://codexery.com/biochemistry-and-cell-biology/e/biochemistry-and-cell-biology/cellulose/": {"t": "Cellulose", "s": "The most abundant organic polymer on Earth, essential for plant cell walls and industrial products."}, "https://codexery.com/biochemistry-and-cell-biology/e/biochemistry-and-cell-biology/amino-acid/": {"t": "Amino acid", "s": "The building blocks of proteins, with 20 standard α-amino acids directly encoded by the genetic code and two rare ones incorporated via recoding."}, "https://codexery.com/cell-and-molecular-biology/e/cell-and-molecular-biology/protein/": {"t": "Protein", "s": "Essential biomolecules that catalyze, structure, and regulate life."}, "https://codexery.com/cell-and-molecular-biology/e/cell-and-molecular-biology/nucleic-acid/": {"t": "Nucleic acid", "s": "The biomolecules that encode genetic information in all cells and viruses."}, "/e/organic-chemistry-and-reaction-mechanisms/atropisomer/": {"t": "Atropisomer", "s": "Stereoisomers arising from hindered rotation about a single bond.", "i": "https://codexery.com/organic-chemistry-and-reaction-mechanism/img/organic-chemistry-and-reaction-mechanisms/atropisomer.webp", "c": "User:Calmkelp · Public domain"}, "https://codexery.com/gemstones/e/gemstones/quartz/": {"t": "Quartz", "s": "A hard, abundant mineral used in jewelry and technology."}, "https://codexery.com/herbs-spices/e/herbs-and-spices/spearmint/": {"t": "Spearmint", "s": "A perennial herb used for flavoring, tea, and essential oil."}, "https://codexery.com/electrochemistry-and-surface-chemistry/e/electrochemistry-and-surface-chemistry/coordination-complex/": {"t": "Coordination complex", "s": "Central metal ion bonded to surrounding ligands via coordinate bonds.", "i": "https://codexery.com/electrochemistry-and-surface-chemistry/img/electrochemistry-and-surface-chemistry/coordination-complex.webp", "c": "Erikvjohnstone · CC BY-SA 4.0"}, "https://codexery.com/chemistry-materials/e/chemistry-and-materials/organometallic-chemistry/": {"t": "Organometallic chemistry", "s": "Study of compounds with metal-carbon bonds, bridging inorganic and organic chemistry."}, "https://codexery.com/inventors/e/great-inventors/louis-pasteur/": {"t": "Louis Pasteur", "s": "Father of bacteriology and pioneer of pasteurization", "i": "https://codexery.com/inventors/img/great-inventors/louis-pasteur.webp", "c": "via Wikipedia: Louis Pasteur · see source"}, "https://codexery.com/scientists-and-mathematicians/e/scientists-and-mathematicians/lord-kelvin/": {"t": "Lord Kelvin", "s": "Scottish mathematician, physicist, and engineer who determined absolute zero and helped formulate the laws of thermodynamics."}, "https://codexery.com/chemists-and-biochemists/e/chemists-and-biochemists/alfred-werner/": {"t": "Alfred Werner", "s": "Swiss chemist who founded modern coordination chemistry."}, "https://codexery.com/international-organizations-and-agreemen/e/international-organizations-and-agreements/international-union-of-pure-and-applied-chemistry/": {"t": "International Union of Pure and Applied Chemistry", "s": "International authority for chemical nomenclature and standards."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/steric-effects/": {"t": "Steric effects", "s": "Spatial arrangement of atoms affects molecular energy and reactivity."}, "https://codexery.com/chemistry-fundamentals/e/chemistry-fundamentals/alkyne/": {"t": "Alkyne", "s": "Unsaturated hydrocarbons with at least one carbon–carbon triple bond."}, "https://codexery.com/chemistry-fundamentals/e/chemistry-fundamentals/alkane/": {"t": "Alkane", "s": "Acyclic saturated hydrocarbons forming a homologous series."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/organic-synthesis/": {"t": "Organic synthesis", "s": "Branch of chemical synthesis building organic compounds from simpler precursors."}, "https://codexery.com/chemistry-fundamentals/e/chemistry-fundamentals/chemical-reaction/": {"t": "Chemical reaction", "s": "Process rearranging atoms with energy change, yielding new substances.", "i": "https://codexery.com/chemistry-fundamentals/img/chemistry-fundamentals/chemical-reaction.webp", "c": "Д.Ильин : translation, optimization · CC0"}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/pericyclic-reaction/": {"t": "Pericyclic reaction", "s": "Pericyclic reactions are concerted organic reactions with a cyclic transition state, governed by the Woodward–Hoffmann rules."}, "https://codexery.com/chemists-and-biochemists/e/chemists-and-biochemists/robert-burns-woodward/": {"t": "Robert Burns Woodward", "s": "American organic chemist and Nobel laureate in synthesis."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/transition-state/": {"t": "Transition state", "s": "Highest-energy configuration along a reaction coordinate."}, "https://codexery.com/mammals/e/mammals/homo/": {"t": "Homo", "s": "Genus of great apes including modern humans and extinct relatives."}, "/e/organic-chemistry-and-reaction-mechanisms/cycloaddition/": {"t": "Cycloaddition", "s": "Cycloadditions form cyclic adducts without nucleophiles or electrophiles.", "i": "https://codexery.com/organic-chemistry-and-reaction-mechanism/img/organic-chemistry-and-reaction-mechanisms/cycloaddition.webp", "c": "Isilanes · Public domain"}, "https://codexery.com/thermodynamics-and-statistical-mechanics/e/thermodynamics-and-statistical-mechanics/enthalpy/": {"t": "Enthalpy", "s": "Enthalpy is the sum of internal energy and pressure-volume work."}, "https://codexery.com/thermodynamics-and-statistical-mechanics/e/thermodynamics-and-statistical-mechanics/entropy/": {"t": "Entropy", "s": "A measure of disorder and irreversibility in physical systems."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/reversible-reaction/": {"t": "Reversible reaction", "s": "A reaction where forward and reverse conversions occur simultaneously."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/organic-reaction/": {"t": "Organic reaction", "s": "Chemical reactions involving organic compounds for synthesis and production."}, "https://codexery.com/chemical-analysis-and-spectroscopy/e/chemical-analysis-and-spectroscopy/chromatography/": {"t": "Chromatography", "s": "A laboratory technique for separating mixtures into their components.", "i": "https://codexery.com/chemical-analysis-and-spectroscopy/img/chemical-analysis-and-spectroscopy/chromatography.webp", "c": "Mattia Luigi Nappi · CC BY-SA 3.0"}, "https://codexery.com/chemistry-fundamentals/e/chemistry-fundamentals/chemical-synthesis/": {"t": "Chemical synthesis", "s": "Artificial execution of chemical reactions to obtain products.", "i": "https://codexery.com/chemistry-fundamentals/img/chemistry-fundamentals/chemical-synthesis.webp", "c": "KlijnB · CC0"}, "/e/organic-chemistry-and-reaction-mechanisms/convergent-synthesis/": {"t": "Convergent synthesis", "s": "A strategy to improve efficiency in multistep organic synthesis.", "i": "https://codexery.com/organic-chemistry-and-reaction-mechanism/img/organic-chemistry-and-reaction-mechanisms/convergent-synthesis.webp", "c": "en:User:V8rik · CC BY-SA 3.0"}, "https://codexery.com/chemistry-fundamentals/e/chemistry-fundamentals/chemical-compound/": {"t": "Chemical compound", "s": "Substance of multiple elements bonded in fixed proportions."}, "/e/organic-chemistry-and-reaction-mechanisms/elimination-reaction/": {"t": "Elimination reaction", "s": "Organic reaction removing substituents to form a pi bond."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/leaving-group/": {"t": "Leaving group", "s": "Fragment that departs with an electron pair in heterolytic cleavage."}, "https://codexery.com/acids-and-bases/e/acids-and-bases/conjugate-acid-base-theory/": {"t": "Conjugate (acid-base theory)", "s": "Conjugate pairs form when acids donate protons to bases."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/reaction-intermediate/": {"t": "Reaction intermediate", "s": "Molecular entity formed and consumed in a stepwise chemical reaction."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/resonance-chemistry/": {"t": "Resonance (chemistry)", "s": "A bonding description using averaged contributing structures."}, "https://codexery.com/particle-and-nuclear-physics/e/particle-and-nuclear-physics/ionization/": {"t": "Ionization", "s": "Process by which atoms or molecules gain or lose electrons to become ions."}, "https://codexery.com/chemistry-fundamentals/e/chemistry-fundamentals/chemical-kinetics/": {"t": "Chemical kinetics", "s": "The branch of physical chemistry concerned with understanding the rates of chemical reactions.", "i": "https://codexery.com/chemistry-fundamentals/img/chemistry-fundamentals/chemical-kinetics.webp", "c": "Wikimedia Commons · Public domain"}, "https://codexery.com/chemistry/e/chemistry/fluorine/": {"t": "Fluorine", "s": "Fluorine is a chemical element, represented by the symbol F and carrying atomic number 9."}, "https://codexery.com/chemistry-fundamentals/e/chemistry-fundamentals/acid/": {"t": "Acid", "s": "A substance that donates a proton or accepts an electron pair.", "i": "https://codexery.com/chemistry-fundamentals/img/chemistry-fundamentals/acid.webp", "c": "Heritage Preservation Department - MNHS · CC BY-SA 4.0"}, "https://codexery.com/chemistry-fundamentals/e/chemistry-fundamentals/base-chemistry/": {"t": "Base (chemistry)", "s": "Substances that react with acids, accepting protons or donating electron pairs."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/reaction-mechanism/": {"t": "Reaction mechanism", "s": "Theoretical sequence of steps describing a chemical reaction."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/pyrolysis/": {"t": "Pyrolysis", "s": "Thermal decomposition of organic matter without oxygen."}, "https://codexery.com/geometry-and-topology/e/geometry-and-topology/coplanarity/": {"t": "Coplanarity", "s": "Coplanarity determines if points or lines share a common plane."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/sigma-bond/": {"t": "Sigma bond", "s": "Strongest covalent bond formed by direct orbital overlap."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/sn1-reaction/": {"t": "SN1 reaction", "s": "A substitution reaction with a unimolecular rate-determining step."}, "https://codexery.com/rules-of-thumb/e/rules-of-thumb/markovnikov-s-rule/": {"t": "Markovnikov's rule", "s": "Predicts regioselectivity in alkene addition reactions."}, "https://codexery.com/chemistry-fundamentals/e/chemistry-fundamentals/aromatic-compound/": {"t": "Aromatic compound", "s": "Cyclic conjugated compounds defined by Hückel's rule."}, "/e/organic-chemistry-and-reaction-mechanisms/e1cb-elimination-reaction/": {"t": "E1cB-elimination reaction", "s": "Elimination via a stabilized carbanion intermediate under basic conditions.", "i": "https://codexery.com/organic-chemistry-and-reaction-mechanism/img/organic-chemistry-and-reaction-mechanisms/e1cb-elimination-reaction.webp", "c": "Choij · Public domain"}, "/e/organic-chemistry-and-reaction-mechanisms/ei-mechanism/": {"t": "Ei mechanism", "s": "Thermal syn elimination via cyclic transition state, no external reagents."}, "https://codexery.com/chemistry/e/chemistry/halogen/": {"t": "Halogen", "s": "Highly reactive nonmetals that form salts and acids.", "i": "https://codexery.com/chemistry/img/chemistry/halogen.webp", "c": "Raimond Spekking · CC BY-SA 4.0"}, "https://codexery.com/medications-and-drugs/e/medications-and-drugs/ketamine/": {"t": "Ketamine", "s": "Anesthetic and antidepressant with dissociative and hallucinogenic properties."}, "https://codexery.com/chemistry/e/chemistry/hydrogen-peroxide/": {"t": "Hydrogen peroxide", "s": "A reactive oxygen species used as an oxidizer and antiseptic."}, "https://codexery.com/teratogens/e/teratogens/thalidomide/": {"t": "Thalidomide", "s": "Teratogen causing limb and organ defects in pregnancy."}, "https://codexery.com/physiology-medicine/e/physiology-and-medicine/analgesic/": {"t": "Analgesic", "s": "Drugs used for pain management, distinct from anesthetics."}, "https://codexery.com/chemical-analysis-and-spectroscopy/e/chemical-analysis-and-spectroscopy/column-chromatography/": {"t": "Column chromatography", "s": "A low-cost method for separating mixture components by differential adsorption.", "i": "https://codexery.com/chemical-analysis-and-spectroscopy/img/chemical-analysis-and-spectroscopy/column-chromatography.webp", "c": "Максим Фомич · CC BY 2.0"}, "https://codexery.com/medications-and-pharmacology/e/medications-and-pharmacology/statin/": {"t": "Statin", "s": "Medications that lower cholesterol and reduce cardiovascular risk."}, "https://codexery.com/chemistry-materials/e/chemistry-and-materials/organic-compound/": {"t": "Organic compound", "s": "Carbon-based compounds central to life and chemistry."}, "https://codexery.com/chemists-and-biochemists/e/chemists-and-biochemists/jacobus-henricus-van-t-hoff/": {"t": "Jacobus Henricus van 't Hoff", "s": "Dutch physical chemist, first Nobel laureate in chemistry."}, "https://codexery.com/geometry-and-shapes/e/geometry-and-shapes/tetrahedron/": {"t": "Tetrahedron", "s": "A polyhedron with four triangular faces and four vertices."}, "https://codexery.com/chemists-and-biochemists/e/chemists-and-biochemists/karl-barry-sharpless/": {"t": "Karl Barry Sharpless", "s": "Two-time Nobel laureate in stereochemistry and click chemistry."}, "https://codexery.com/inorganic-compounds-materials/e/inorganic-compounds-and-materials/hydrogen-bromide/": {"t": "Hydrogen bromide", "s": "A colorless gas and strong acid, key in organic and inorganic bromide synthesis.", "i": "https://codexery.com/inorganic-compounds-materials/img/inorganic-compounds-and-materials/hydrogen-bromide.webp", "c": "KES47 · via Wikipedia: Hydrogen bromide · Public domain"}, "https://codexery.com/inorganic-compounds-materials/e/inorganic-compounds-and-materials/hydrogen-sulfide/": {"t": "Hydrogen sulfide", "s": "Colorless, toxic gas with a rotten-egg odor.", "i": "https://codexery.com/inorganic-compounds-materials/img/inorganic-compounds-and-materials/hydrogen-sulfide.webp", "c": "Jynto ( talk ) · CC0"}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/retrosynthetic-analysis/": {"t": "Retrosynthetic analysis", "s": "A technique for planning organic syntheses via structural simplification."}, "https://codexery.com/chemistry-materials/e/chemistry-and-materials/inorganic-compound/": {"t": "Inorganic compound", "s": "A chemical compound that lacks carbon–hydrogen bonds, studied in inorganic chemistry."}, "https://codexery.com/chemistry-materials/e/chemistry-and-materials/nitrate/": {"t": "Nitrate", "s": "Nitrate is a polyatomic ion used in fertilizers and explosives."}, "https://codexery.com/chemists-and-biochemists/e/chemists-and-biochemists/victor-grignard/": {"t": "Victor Grignard", "s": "French chemist who discovered the Grignard reagent and reaction."}, "https://codexery.com/chemistry-fundamentals/e/chemistry-fundamentals/carboxylic-acid/": {"t": "Carboxylic acid", "s": "Polar organic acids with carboxyl group, widely occurring in nature."}, "https://codexery.com/sodium-compounds/e/sodium-compounds/sodium-hypochlorite/": {"t": "Sodium hypochlorite", "s": "Alkaline compound used as bleach and disinfectant; household use became widespread in the early 20th century."}, "https://codexery.com/chemists-and-biochemists/e/chemists-and-biochemists/justus-von-liebig/": {"t": "Justus von Liebig", "s": "Father of the fertilizer industry and pioneer of modern chemistry education."}, "https://codexery.com/philosophical-concepts/e/philosophical-concepts/hypothesis/": {"t": "Hypothesis", "s": "A proposed explanation requiring testable and reproducible prediction."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/reaction-coordinate/": {"t": "Reaction coordinate", "s": "Abstract coordinate representing progress along a reaction pathway."}, "https://codexery.com/thermodynamics-and-statistical-mechanics/e/thermodynamics-and-statistical-mechanics/thermodynamic-free-energy/": {"t": "Thermodynamic free energy", "s": "Free energy measures work available at constant temperature."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/rate-determining-step/": {"t": "Rate-determining step", "s": "The slowest step that governs overall reaction rate."}, "https://codexery.com/chemistry-fundamentals/e/chemistry-fundamentals/chemical-equilibrium/": {"t": "Chemical equilibrium", "s": "State where forward and reverse reaction rates are equal."}, "https://codexery.com/reaction-mechanisms-and-kinetics/e/reaction-mechanisms-and-kinetics/rearrangement-reaction/": {"t": "Rearrangement reaction", "s": "Organic reactions involving change of connectivity within a molecule."}, "https://codexery.com/chemistry-fundamentals/e/chemistry-fundamentals/chemical-equation/": {"t": "Chemical equation", "s": "Symbolic representation of a chemical reaction using formulas and an arrow."}, "https://codexery.com/chemistry-fundamentals/e/chemistry-fundamentals/chemical-bond/": {"t": "Chemical bond", "s": "The association of atoms or ions via electrostatic forces, electron sharing, or a combination, forming molecules and crystals."}, "https://codexery.com/electromagnetism/e/electromagnetism/electric-charge/": {"t": "Electric charge", "s": "Electric charge is a quantized property causing electromagnetic force."}, "https://codexery.com/chemistry-materials/e/chemistry-and-materials/inorganic-chemistry/": {"t": "Inorganic chemistry", "s": "Study of non-carbon-based compounds and their industrial applications."}, "https://codexery.com/electromagnetism-and-radiation/e/electromagnetism-and-radiation/ultraviolet/": {"t": "Ultraviolet", "s": "Electromagnetic radiation beyond violet, with both harmful and beneficial effects."}, 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