Organic Chemistry in the Design of New Materials and Devices
Organic chemistry is the study of the structure, properties, and reactions of...
Organic Chemistry Glossary
Glossary Terms in Undergraduate Organic Chemistry & Where They First Appear in This Database.
0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z O
Return Home
| Abbreviation, Term, Symbol | Class | Database Headings |
| Δ | LAB | (heat) |
| (+) (see dextrorotatory) | I | Stereochemistry |
| (-) (see levorotatory) | I | Stereochemistry |
| 1,2-addition | I | Electrophilic Addition |
| [1,2]-hydride shift | I | Carbocations |
| [1,2]-alkyl shift | I | Carbocations |
| 1º, 2º, 3º, 4º | I | Classifying Carbon |
| [1,3] migration | II | Pericyclic reactions |
| 1,4-addition | II | Conjugation, Enones and Enoates |
| [1,5] migration | II | Sigmatropic Rearrangements |
| [1,7] migration | II | Sigmatropic Rearrangements |
| [2+2] cycloaddition | II | Pericyclic Reactions |
| [3+2] cycloaddition | II | Pericyclic Reactions |
| [4+2] cycloaddition | I | Pericyclic Reactions |
| 9-BBN | I | Electrophilic Addition |
| Absolute (pure, neat) | LAB | |
| Absolute Configuration | I | Stereochemistry |
| Absorbance Spectrum | I | IR, UV-Vis Spectroscopy |
| Acetal | II | Aldehydes and ketones |
| Acetoacetic Ester Synthesis | II | Name Reactions |
| Acetylene | I | Alkynes |
| Acetylide Anion | I | Alkynes |
| Achiral | I | Stereochemistry |
| Acid Anhydride | II | Carboxylic Acid Derivatives |
| Acid-Catalyzed | I | Electrophilic Addition |
| Acid Chloride (also Acid Halide) | II | Carboxylic Acid Derivatives |
| Acid Ionization Constant | I | Acids and Bases |
| Activated Charcoal (Norit) | LAB | |
| Activation Energy | GEN | Kinetics vs. Thermodynamics |
| Activating Group | II | Reactions of Benzene |
| Actual Yield | LAB | |
| Acyl Group (see acetyl) | II | Carboxylic Acid Derivatives |
| Acylation Reactions | II | Reactions of Benzene |
| Acylium ion | II | Reactions of Benzene |
| Adenine | II | Nucleic Acids |
| Adenosine | II | Nucleic Acids |
| Addition | I | Electrophilic Addition |
| Adsorption | LAB | |
| Alanine | II | Peptides and Proteins |
| Alcohol | I | Alcohols, Ethers, Epoxides |
| Alcoholysis | II | Carboxylic Acid Derivatives |
| Aldehyde | II | Ketones and Aldehydes |
| Aldohexose | II | Sugars |
| Aldol Reaction | II | Ketones and Aldehydes II |
| Aldol Condensation | II | Ketones and Aldehydes II |
| Aldose | II | Sugars |
| Alkali Metal | GEN | |
| Alkaline | GEN | |
| Alkaline Earth Metal | GEN | |
| Alkaloid | II | Amines |
| Alkane | I | Alkanes |
| Alkene | I | Alkenes |
| Alkyne | I | Alkynes |
| Alkoxide | I | Substitution |
| Alkyl Group | I | Nomenclature |
| Alkyl Halide | I | Nomenclature |
| Allene | I | Alkenes, Stereochemistry |
| Allyl Groups | I | Resonance |
| Allylic carbocations | I | Resonance |
| Allylic Position | I | Resonance |
| Amino Acid | II | Peptides and Proteins |
| a-Anomer | II | Sugars (Carbohydrates) |
| a-Carbon | II | Functional groups |
| Alpha-helix | II | Peptides and Proteins |
| Anisotropy | I | NMR Spectroscopy |
| Amalgam | II | Redox Reactions |
| Ambident | II | Ketones and Aldehydes |
| Amide | II | Carboxylic Acid Derivatives |
| Amine | I | Amines I & II |
| Amine Oxide | I | Elimination |
| amu | GEN | |
| Angle Strain | I | Conformational Analysis |
| Anhydrides | II | Carboxylic Acid Derivatives |
| Anhydrous | LAB | |
| Anion | GEN | |
| Annealing | II | Nucleic Acids |
| Anomer | II | Sugars (Carbohydrates) |
| Anomeric Carbon | II | Sugars (Carbohydrates) |
| Anomeric Effect | II | Electron Delocalization |
| Anti | I | Stereochemistry |
| Anti Addition | I | Electrophilic Addition |
| Anti-Markovnikov Addition | I | Regiochemistry |
| Anti-periplanar | I | Newman Projections |
| Anti-aromaticity | II | Aromaticity |
| Antibiotic | II | Drugs and Enzymes |
| Anti-bonding Molecular Orbital | I | Molecular Orbital Theory |
| Aprotic Solvent | I | Solvents |
| Aqueous | I | Solvents |
| Arenium Ion | I | Aromatic Substitution |
| Arginine | II | Peptides and Proteins |
| Arrhenius Rate Equation | I | Kinetics vs. Thermodynamics |
| Aryl or Ar- | I | Nomenclature |
| Aryl halide | II | Functional Groups |
| Asparigine (K or Asp) | II | Peptides and Proteins |
| Aspartic Acid | II | Peptides and Proteins |
| Asymmetric | I | Stereochemistry |
| Asymmetric Stretching | I | IR Spectroscopy |
| Atomic Mass | GEN | |
| Atomic Number | GEN | |
| Atomic Orbital | GEN | |
| Atomic Radius | GEN | |
| ATP (adenosine triphosphate) | II | Nucleic Acids |
| Avagadro’s Number | GEN | |
| Axial | I | Conformational Analysis |
| Azeotrope | LAB | |
| Azide | I | Substitution |
| Aziridine | I | Amines I |
| Azimuthal Quantum Number | I | Electron Configuration |
| Azo Coupling | II | Reactions of Benzene |
| Back-sided Attack | I | Electrophilic Addition, Substitution |
| Baeyer-Villiger Oxidation | II | Redox Reactions |
| Banana Bonds | I | Cycloalkanes |
| Base | I | Acids and Bases |
| Base-catalyzed | I | Catalysis |
| Base Pair | II | Nucleic Acids |
| Bond Dissociation Energy (BDE) | I | Radicals |
| Bending Mode (IR) | I | IR Spectroscopy |
| Benzylic Carbocation | I | Carbocations |
| Benzyl group | I | Nomenclature |
| Benzylic Position | I | Resonance |
| Benzyne | II | Reactions of Benzene |
| ß-anomer | II | Sugars (Carbohydrates) |
| ß-carbon | I | Elimination, Conjugate addition |
| ß-Elimination | I | Elimination |
| Betaine | II | Aldehydes and Ketones |
| ß-Sheet | II | Peptides and Proteins |
| Bicyclic | II | Nomenclature |
| Bimolecular | GEN, I | Elimination, Substitution |
| Biosynthesis | II | Advanced Synthetic Strategy |
| Boat Conformation | I | Conformational Analysis |
| Boiling Point | I | Alkanes |
| Bond Angle | I | Bonding & Hybridization |
| Bond Dipole | I | Bonding and Hybridization |
| Bond length | I | Representing Organic Compounds |
| Bond Order | GEN | |
| Bond Rotation | I | Conformational Analysis |
| Bond Stretch | I | IR Spectroscopy |
| Bond-Line Structure | I | Drawing Organic Structures |
| Bonding Molecular Orbital | I | Molecular Orbital theory |
| Borane | I | Electrophilic Addition |
| Branching | I | Nomenclature |
| Bridged | I | Polycyclic Compounds |
| Bromination | I | Electrophilic Addition & Substitution |
| Bronsted Acid-Base Theory | I | Acids and Bases |
| Butyl group | I | Nomenclature |
| Cahn-Ingold-Prelog (C-I-P) Rules | I | Nomenclature |
| Carbanion | II | Carbanions; Reactive intermediates |
| Carbocation | I | Carbocations |
| Carbohydrate | II | Sugars (Carbohydrates) |
| Carbon NMR | I | NMR Spectroscopy |
| Carbonyl | II | Ketones and Aldehydes |
| Carboxylate | II | Carboxylic Acid Derivatives |
| Carboxylic Acid | II | Carboxylic Acid Derivatives |
| Carboxylic Acid Derivative | II | Carboxylic Acid Derivatives |
| Canonical Form | I | Resonance |
| Catalyst | I | Reaction Coordinate Diagrams |
| Catalytic Hydrogenation | I | Redox Reactions |
| Chain Initiation | I | Radicals |
| Chain Propagation | I | Radicals |
| Chain Termination | I | Radicals |
| Chair Conformation | I | Conformational Analysis |
| Chair Flip | I | Conformational Analysis |
| Chemical Shift | I | NMR Spectroscopy |
| Chirality | I | Stereochemistry |
| Chiral Center | I | Stereochemistry |
| Chlorination | I,II | Electrophilic Addition |
| Cholesterol | II | Fats & Lipids |
| Chromatography | LAB | Lab |
| Cis | I | Stereochemistry |
| Claisen Condensation | II | Condensation Reactions |
| Claisen Rearrangement | II | Pericyclic Reactions |
| Clemmensen Reduction | II | Redox Reactions |
| Combustion | I | Alkanes |
| Concerted Reaction | I | Substitution |
| Condensation Reactions | II | Condensation Reactions |
| Condensed Formula | I | Representing Organic Compounds |
| Configuration | I | Stereochemistry |
| Configurational Isomer | I | Stereochemistry |
| Conformation | I | Isomerism |
| Conformational Isomer | I | Isomerism |
| Conformer | I | Isomerism |
| Conjugate Acid | I | Acids and Bases |
| Conjugate Base | I | Acids and Bases |
| Conjugation | I | Resonance |
| Constitutional isomer | I | Isomerism |
| Coordination Compounds | I | Organotransition Metal Chemistry |
| Coupling | I | NMR Spectroscopy |
| Coupling Constant (J) | I | NMR Spectroscopy |
| Covalent Bond | I | Atoms and Molecules |
| Crown Ethers | I | Alcohols, Ethers, Epoxides |
| Cuprate | I,II | Organometallic Compounds |
| Curved Arrow | I | Arrow pushing and Mechanism |
| Cycloaddition Reaction | I | Pericyclic Reactions |
| Cycloalkane | I | Alkanes, Nomenclature |
| Cyclobutadiene | II | Aromaticity |
| Cyclooctatetraene | II | Aromaticity |
| Cyclopentadienyl anion | II | Aromaticity |
| Cyclopentadienyl cation | II | Aromaticity |
| Cyclopropane | I | Cycloalkanes |
| Cyclopropenyl cation | II | Aromaticity |
| Cysteine | II | Peptides and Proteins |
| Cystine | II | Peptides and Proteins |
| Cytosine | II | Nucleic Acids |
| d (same as (+)) | I | Stereochemistry |
| D | I | Stereochemistry |
| Dalton | GEN | (an atomic mass unit) |
| Deactivating Group | II | Reactions of Benzene |
| Deactivator | II | Reactions of Benzene |
| Decarboxylation | II | Condensation Reactions |
| Decomposition | LAB | |
| Degenerate | I | Resonance Structures |
| Delocalization | I | Resonance Structures |
| Deoxyribonucleic Acid | II | Nucleic Acids |
| Deprotection / Deblocking | II | Ketones and Aldehydes |
| Deprotonate | I | Acids & Bases |
| DEPT | II | NMR spectroscopy |
| Deshielded | I | NMR spectroscopy |
| Desolvation | I | NMR spectroscopy |
| Destructive Interference | I | NMR spectroscopy |
| Detergent | II | Fats and Lipids |
| Detonation | LAB | |
| Deuterium | I | Mass Spectrometry |
| Dewar Benzene | I | Benzene & Aromatics |
| Dextrorotatory (D or d or +) | I | Stereochemistry |
| Dextrose | I | Sugars |
| Diastereomer | I | Stereochemistry |
| Diatomic | GEN | |
| Diaxial Interaction | I | Conformational Analysis |
| Diazonium Cation | II | Reactions of Benzene |
| Diazonium Salt | II | Reactions of Benzene |
| Diazotization | II | Reactions of Benzene |
| DIBAL | II | Redox Reactions |
| Dichloromethane (methylene chloride) | LAB | Solvents (Chart) |
| Dichromate | I | Redox Reactions |
| Dieckmann Condensation | II | Condensation Reactions |
| Dielectric Constant | I | Solvents |
| Diels-Alder Reaction [4+2] cycloaddition | I | Dienes |
| Diene | I | Dienes |
| Dieneophile | I | Dienes |
| Diethyl ether | I | Solvents |
| Diffraction | I | Refractive Index |
| Diffraction Pattern | I | Refractive Index |
| Dihedral angle | I | Conformational Analysis |
| Dimer | I | Refractive Index |
| Dimethylformamide (DMF) | I | Solvents |
| Dimethyl Sulfide (DMS) | I | Solvents |
| Dimethyl sulfoxide (DMSO) | I | Solvents |
| Diol | I | Redox Reactions |
| Dipeptide | I | Peptides and Proteins |
| Dipole | I | Bonding and Hybridization |
| Dipole Moment | GEN | |
| Disproportionation | II | Redox Reactions |
| Diprotic Acid | GEN | |
| Diradical | II | Alkenes, aromatization |
| Directing Group | I | Reactions of Benzene |
| Disaccharide | II | Sugars |
| Dispersion Force (London Force) | I | Intermolecular Forces |
| Distillation | LAB | |
| Disubstituted | I | Nomenclature |
| Disulfide | I | Peptides and Proteins |
| Disulfide Bridge | I | Peptides and Proteins |
| Divalent Anions and Cations | I | Formal Charge |
| Double Bond | I | Alkenes |
| Double Bond Equivalent (DBE) | I | Index of Unsaturation IU |
| Double-headed Arrow | I | Arrow Pushing and Mechanism |
| Double Helix | II | Nucleic Acids |
| Doublet | I | NMR Spectroscopy |
| Downfield | I | NMR Spectroscopy |
| Drug | II | Drugs, Enzymes, and Activation |
| e | I | Solvents |
| E (Ger. entgegen) | I | Stereochemistry |
| E1 Mechanism | I | Elimination |
| E1 Reaction | I | Elimination |
| E1CB Mechanism | I | Elimination |
| E2 Mechanism | I | Elimination |
| E2 Reaction | I | Elimination |
| Ea | I | Kinetics vs. Thermodynamics |
| Early Transition State | I | Kinetics vs. Thermodynamics |
| Eclipsed | I | Conformational Analysis |
| %ee (enantiomeric excess) | I | Stereochemistry |
| Election Configuration | I | Electron Configuration |
| Electron Delocalization | I | Resonance; Conjugation |
| Electron Donating Group | I | Dienes |
| Electron Pair Repulsion | I | Structure and Bonding |
| Electron-Sea (Sea of Electrons) Model | I | Special Topic |
| Electron Withdrawing Group (EWG) | I | Dienes |
| Electronegative | GEN | |
| Electronegativity | GEN | |
| Electroneutral | GEN | |
| Electrophile | I | Reactions |
| Electrophilic Addition Reaction | I | Alkenes |
| Electrophilic Aromatic Substitution | II | Reactions of Benzene |
| Electropositive | GEN | |
| Elimination Reaction | I | Eliminations |
| Emulsion | II, LAB | Fats and Lipids |
| Enamine | II | Ketones and Aldehydes |
| Enantiomeric Excess | I | Stereochemistry |
| Enantiomer | I | Stereochemistry |
| Endergonic | I | Kinetics vs. Thermodynamics |
| Endothermic | I | Kinetics vs. Thermodynamics |
| Energy Profile or Reaction Coordinate | I | Kinetics vs. Thermodynamics |
| Enol | I | Isomers, Tautomerization |
| Enolate | II | Reactions at the alpha-Carbon |
| Enolization | II | Reactions at the alpha-Carbon |
| Enone | II | Enones and Enoates |
| Enthalpy of Combustion | I | Kinetics vs. Thermodynamics |
| Enthalpy of Formation | I | Kinetics vs. Thermodynamics |
| Enthalpy of Hydrogenation | I | Kinetics vs. Thermodynamics |
| Enzyme | II | Kinetics vs. Thermodynamics |
| Epoxide | I | Alcohols, ethers epoxides |
| Equation of State | GEN | |
| Equilibrium | GEN | |
| Equilibrium Constant | GEN | |
| Equatorial | I | Conformational analysis |
| Equivalent | I | Lab |
| Ester | II | Carboxylic Acid Derivatives |
| Et- (Ethyl) | I | Nomenclature |
| Ether | I | Alcohols, Ethers, Epoxides |
| Ethyl acetate | I | Solvents |
| Ethyl ether | I | Solvents |
| Ethyne (acetylene) | I | Alkynes |
| Evaporation | GEN | Lab; aka Vaporization |
| Excess Reagent (“xs“) | I | Alkynes, Lab |
| Excited State | I | Molecular Orbital Theory |
| Exergonic | I | Kinetics vs. Thermodynamics |
| Exothermic | I | Kinetics vs. Thermodynamics |
| Expanded Octet | I | Trends in the Periodic Table |
| Extinction Coefficient | I | Spectroscopy |
| Fatty Acid | II | Fats and Lipids |
| Fingerprint Region | I | IR Spectroscopy |
| First Order Coupling | I | NMR Spectroscopy |
| First Order Splitting | I | NMR Spectroscopy |
| Fischer Esterification | II | Carboxylic Acid Derivatives |
| Fischer Projection | I,II | Sugars, Stereochemistry |
| Five Zone Analysis | II | Drug Formulation Medicinal Chem. |
| Fluorination | II | Reactions of Benzene |
| Formal Charge | I | Bonding and Hybridization |
| Fractional Distillation | LAB | |
| Fragment Ion (formerly “Daughter” ion) | I | Mass Spectrometry |
| Fragmentation | I | Mass Spectrometry |
| Free Radical | I | Radical Reactions |
| Friedel-Crafts Acylation | II | Reactions of Benzene |
| Friedel-Crafts Alkylation | II | Reactions of Benzene |
| Front-side Attack | II | |
| Fullerenes | II | Allotropes of Carbon |
| Functional Group | I | Functional Groups |
| Fused | II | Polycyclic Ring Systems |
| Gas Chromatography | LAB | Analytical Chemistry |
| Gauche | I | Conformational Analysis |
| GC | LAB | Analytical Chemistry |
| GC-MS | LAB | Analytical Chemistry |
| Geminal or (1,1) | I | Nomenclature |
| Geometric Isomer (obsolete) | I | Isomerism |
| Gibbs Free Energy | I | Kinetics vs. Thermodynamics |
| Gibbs-Helmholtz Equation | I | Kinetics vs. Thermodynamics |
| Gilman Reagent | I | Organometallics |
| Glucose | II | Sugars |
| Glutamic Acid | II | Peptides and Proteins |
| Glutamine | II | Peptides and Proteins |
| Glycerol | II | Fats and Lipids |
| Glycine | II | Peptides and Proteins |
| Glycosidic Bond | II | Sugars (Carbohydrates) |
| Grignard Reaction | II | Epoxides, Carbonyl Compounds |
| Grignard Reagent | I | Organometallic |
| Grob Fragmentation | II | Named Reactions |
| Ground State | I | Reaction Coordinate Diagrams |
| Guanine | II | Nucleic Acids |
| 1,2-hydride shift | I | Carbocations; Electorphilic Addition |
| 1H-NMR | I | NMR Spectroscopy |
| hv | GEN | Energy of a photon (Plank’s constant · wavelength) |
| H-Bond | I | Intermolecular interactions |
| Halide | I | Functional Groups |
| Haloalkane | I | Functional Groups |
| Haloarene | I | Functional Groups |
| Halogen | I | Trends in the Periodic Table |
| Halogenation | I,II | Addition, Substitution |
| Hammond Postulate | I | Transition State Theory |
| Hard/Soft Acid/Base Theory (HSAB) | I | Polar Reactions |
| Haworth Projection (pronounced “hay”+”worth”) | II | Sugars |
| Heat of Combustion | I | Kinetics vs. Thermodynamics |
| Heat of Formation | I | Kinetics vs. Thermodynamics |
| Heat of Hydrogenation | I | Kinetics vs. Thermodynamics |
| Hemiacetal (hemiketal has obsolesced from IUPAC) | II | Ketones and Aldehydes |
| Henderson-HasselBalch Equation | GEN | Acids and Bases |
| Henry’s Law | GEN | Partial Pressures |
| Hess’s Law | GEN | Heat summation |
| HETCOR | LAB | Advanced Spectroscopy |
| Heteroatom | I | Functional Groups |
| Heterocycle | I | Functional Groups |
| Heterogeneous | I | Catalysis |
| Heterolysis | I | Transition State Theory |
| Heterolytic Bond Cleavage | I | Transition State Theory |
| Highest Occupied Molecular Orbital (HOMO) | I | Molecular Orbitals |
| Histidine | II | Peptides and Proteins |
| HMQC | II | NMR (Advanced) |
| HOAc (or AcOH) acetic acid | I | Nomenclature, Solvents |
| Hofmann Degradation | II | Named Reactions, Amines |
| Hofmann Elimination | II | Named Reactions, Amines |
| Hofmann’s Rule | I | Elimination |
| HOMO-LUMO Gap | I | Molecular Orbital Theory |
| Homogeneous | I | Catalysis |
| Homolysis | I | Transition State |
| Homolytic Bond Cleavage | I | Transition State |
| Hooke’s Law | GEN | |
| Huckel’s Rule | II | Aromaticity |
| Hybrid Orbital | I | Bonding and Hybridization |
| Hydration | I | Electrophilic Addition |
| Hydride | I | Redox Reactions |
| Hydroboration | I | Electrophilic Addition |
| Hydroboration-Oxidation Reaction | I | Electrophilic Addition |
| Hydrolysis | II | Carboxylic Acid Derivatives |
| Hydronium Ion | I | Acids and Bases |
| Hydrophilic | GEN | Solvents |
| Hydrophobic | GEN | Solvents |
| Hydrophobic Effect | GEN | Solvents |
| Hygroscopic | LAB | |
| Hyperconjugation | I | Electron Delocalization |
| I or spin quantum number (±½) | I | Electron Configuration |
| Imidazole | II | Aromatics |
| Imine | II | Aldehydes and Ketones |
| Immiscible | I | Solvents |
| In silico | GEN | (In glass) |
| In situ | I | (In the reaction system) |
| In vitro | I | (In glass) |
| In vivo | I | (In a living organism) |
| Indole | II | Aromatics, Alkaloids |
| Inductive Effect | I | Electron Delocalization |
| Infrared Spectroscopy | I | IR Spectroscopy |
| Infrared Spectrum | I | IR Spectroscopy |
| Inhibitor | II | Radical Reactions |
| Initiation | I | Radical Reactions |
| Initiator | I | Radical Reactions |
| Integration | I | NMR Spectroscopy |
| Intermediate | I | Reactive Intermediates |
| Intermolecular | I | Reaction Dynamics |
| Internal alkene | I | Alkenes |
| Internal alkyne | I | Alkynes |
| Intramolecular | I | Reaction Dynamics |
| Inversion of Configuration | I | Stereochemistry |
| Iodination | I | Electrophilic Addition & Substitution |
| Iodoform Reaction | II | Ketones and Aldehydes |
| Ion | GEN | |
| Ionic Bond | GEN | Bonding and Hybridization |
| Ionization | I | |
| i-Pr | I | Nomenclature |
| Ipso and Ipso Substitution | I | Nucleophilic Aromatic Substitution |
| IR | I | IR Spectroscopy |
| Isoelectronic | I | Organometallics |
| Isoleucine | I | Peptides and Proteins |
| Isomer | I | Isomerism |
| Isomerization | I | Isomerism |
| Isotope | I | Mass Spectrometry |
| IUPAC | I | Nomenclature |
| Jahn-Teller Effect | I | Advanced Physical |
| Joule | GEN | |
| Jones Reagent | II | Redox Reactions |
| Ka | I | Acids and Bases |
| kcal / kilocalorie or Calorie | I | Equilibrium |
| kJ / kilojoule | I | Equilibrium |
| Kekule Structure | I | Representing Organic Compounds |
| Keq | I | Equilibrium |
| Keto form | I | Tautomerism/Tautomerization |
| Ketone | II | Ketones and Aldehydes |
| Ketose | II | Sugars |
| Ketoxime | II | Sugars |
| Kinetic Control | I | Kinetics vs Thermodynamics |
| l (the opposite of d) | I | Stereochemistry |
| L- (the opposite of D-) | I | Stereochemistry |
| Lactam | II | Carboxylic Acid Derivatives |
| Lactone | II | Carboxylic Acid Derivatives |
| Late Transition state | I | The Transition State |
| LDA (lithium diisopropylamide) | II | Ketones and aldehydes |
| Le Chatelier’s Principle | GEN | |
| Leaving Group | I | Substitution; Elimination |
| Leucine | II | Peptides and Proteins |
| Levorotatory | I | Stereochemistry |
| Lewis Acid-Base | I | Acids and Bases |
| Lewis Dot Structure | I | Bonding and Hybridization |
| Lewis Structure | I | Bonding and Hybridization |
| Ligand | I | Organometallics |
| Limiting Reagent | LAB | |
| Lipid | II | Fats and Lipids |
| Lipophilic | II | Fats and Lipids |
| Lipophobic | II | Fats and Lipids |
| London disperson Force | I | Intermolecular Forces |
| Lone Pair | I | Bonding and Hybridization |
| Long-Range Coupling | I | NMR Spectroscopy |
| Lowest Unoccupied Molecular Orbital (LUMO) | I | Molecular Orbitals |
| Lysine | II | Peptides and Proteins |
| mu (µ) | I | Dipole Moment |
| M | I | Mass Spectrometry |
| M+1 | I | Mass Spectrometry |
| M+2 | I | Mass Spectrometry |
| m/z | I | Mass Spectrometry |
| Main Group Elements | I | Trends in the Periodic Table |
| Major groove | II | Nucleic Acids |
| Markovnikov Addition | I | Electrophilic Addition |
| Markovnikov’s Rule | I | Electrophilic Addition |
| Mass Spectrum | I | Mass Spectrometry |
| Mass Spectrometry | I | Mass Spectrometry |
| McLafferty Rearrangement | I | Mass Spectrometry |
| mCPBA | I | Redox Reactions |
| Me- | I | Nomenclature |
| Mechanism | I | Arrow Pushing and Mechanism |
| Medicinal Chemistry | II | Medicinal Chemistry |
| Melting Point | LAB | |
| Mercaptan | I | Sulfur Compounds |
| Meso Compound | I | Stereochemistry |
| Mesomerism (see resonance) | I | Stereochemistry |
| Mesylate | I | Substitution |
| Meta | I | Reactions of Benzene |
| Meta Director | II | Reactions of Benzene |
| Metals and Metalloids | I | Transition Metals |
| Metabolism | II | Biochemistry |
| Methanesulfonate | I | Substitution |
| Methanesulfonic Acid | I | Substitution |
| Methine Group | I | NMR Spectroscopy |
| Methionine | II | Peptides and Proteins |
| Methylene group | I | NRM Spectroscopy |
| Microscopic Reversibility | I | Rxn Coord Diagrams |
| Mineral Acid | I | Acids and Bases |
| Minor Groove | II | Nucleic Acids |
| Miscible | I | Solvents |
| Moiety | I | Functional Groups |
| Mol | Gen | |
| Molar Mass | Gen | |
| Mole | Gen | |
| Molecular Formula | Gen | Alkanes |
| Molecular Ion | I | Mass Spectrometry |
| Molecular Model Kit | I | Blog |
| Molecular Sieve | LAB | |
| Molecular Weight (MW) | GEN | |
| Molozonide | I | Redox reactions |
| Molecular Orbital (MO) | I | Molecular Orbitals |
| Monosubstituted | I | Alkenes |
| Multiplet | I | NMR Spectroscopy |
| Mutarotation | II | Sugars |
| N-bromosuccinimide (NBS) | I | Electrophilic Addition, Radicals |
| N-chlorosuccinimide (NCS) | I | Electrophilic Addition |
| N-iodosuccinimide (NIS) | I | Radicals |
| n | I | Nomenclature |
| n-BuLi | I | Alkanes |
| n+1 Rule | I | NMR Spectroscopy |
| 4n Rule | II | Aromaticity |
| 4n+2 Rule | II | Aromaticity |
| NaBH4 | I | Redox Reactions |
| NaH | I | Substitution; Alcohols |
| Named Reaction | I | Named Reactions |
| Natural Product (Organic I, Intro to Synthesis) | II | Other Organic Divisions |
| Newman Projection | I | Conformational Analysis |
| Nitration | II | Reactions of Benzene |
| Nitrile | II | Carboxylic Acid Derivatives |
| Nitro Compounds | II | Reactions of Benzene |
| Nitrogen (Walden) Inversion | I | Stereochemistry |
| Nitrogen Rule | I | Mass Spectrometry |
| NMR | I | Nuclear Magnetic Resonance |
| Node | I | Atoms and Orbitals |
| Nomenclature | I | Nomenclature |
| Non-first Order Coupling | I | NMR Spectroscopy |
| Non-first Order Splitting | I | NMR Spectroscopy |
| Nonaromatic | II | Aromaticity |
| Non-bonded Electron Pair | I | Mass Spectrometry |
| Non-decoupled | II | C NMR Spectroscopy |
| Nonpolar Solvent | II | Solvents |
| Non-spontaneous Reaction | I | Kinetics vs. Thermodynamics |
| Nonsuperimposable | I | Chirality |
| Nu: | I | Reaction Mechanism |
| Nuclear Spin Flip | I | NMR Spectroscopy |
| Nucleic Acids | II | Nucleic Acids |
| Nucleophile | I | Reaction Mechanisms |
| Nucleophilic Aromatic Substitution | II | Reactions of Benzene II |
| Nucleophilicity | I | Reaction Mechanism |
| Nucleoside | II | Nucleic Acids |
| Nucleotide | II | Nucleic Acids |
| Octet Rule | I | Bonding and Hybridization |
| Olefin | I | Alkenes |
| One Equivalent | LAB | |
| One Molecule Rule | I | |
| Optical Activity | I | Chirality |
| Optically Inactive | I | Chirality |
| Organometallic Compound | I | Organotransition metal compounds |
| Organolithium Reagent | I | The strongest bases |
| Ortho | II | Reactions of Benzene |
| Ortho-Para Director | II | Reactions of Benzene |
| OMs | I | Substitution |
| OTf | I | Substitution |
| OTs | I | Substitution |
| Oxaphosphetaine | II | Ketones & Aldehydes) |
| Oxidant | I,II | Redox Reactions |
| Oxidation | I,II | Electrophilic Addition |
| Oxime | II | Ketones and Aldehydes |
| Oxonium Ion | II | Ketones and Aldehydes |
| Oxyanion | I | Substitution |
| Ozone | I | Redox Reactions |
| Ozonolysis (Harries Reaction) | I | Redox Reactions |
| Pi (p) bond | I | Bonding and Hybridization |
| pi (p) orbital | I | Bonding and Hybridization |
| pi* (p*) orbital | I | Bonding and Hybridization |
| p orbital | I | Bonding and Hybridization |
| Para | II | Reactions of Benzene |
| Paraffin | I | Alkanes |
| Pentet | I | NMR Spectroscopy |
| Peptide | II | Peptides and Proteins |
| Peptide Bond | II | Peptides and Proteins |
| Peracetic Acid | I | Redox Reactions |
| Peracid | I | Redox Reactions |
| Percent Yield | LAB | |
| Permanganate | I | Redox Reactions |
| Peroxide | I | Radical Reactions |
| pH | I | Acids and Bases |
| pKa | I | Acids and Bases |
| Pharmacology | II | Drugs and Enzymes |
| Phenol (Organic II, Reactions of Benzene) | II | Reactions of Benzene |
| Phenyl Group (Ph-) | I | Nomenclature |
| Phenylalanine | II | Peptides and Proteins |
| Phospholipid | II | Fats and Lipids |
| Phosphodiester | II | Nucleic Acids |
| Photochemistry | II | Pericyclic Reactions |
| Photolysis | II | Radical Reactions |
| Photon | Gen | |
| pi-cation interaction | II | Secondary Spatial Effects |
| pi stacking | II | Secondary Spatial Effects |
| piperidine | II | Heterocycles |
| pKa | I | Acids and Bases |
| pKb | I | Acids and Bases |
| Plane Polarized Light | I | Chirality |
| Polar Covalent Bond | I | Bonding and Hybridization |
| Polar Solvent | I | Solvents |
| Polarimetry | I | Chirality |
| Polarizability | GEN | |
| Polypeptide | II | Peptides and Proteins |
| Polysaccharide | II | Sugars |
| Potential Energy | I | Kinetics and Thermodynamics |
| ppm | I | NMR Spectroscopy |
| Pr- (propyl substituent) | I | Nomenclature |
| Precipitation | LAB | |
| Primary | I | Classifying Carbons |
| Prodrug | II | Drugs and Enzymes |
| Product | I | Mechanism |
| Proline | II | Peptides and Proteins |
| Propagation | I | Radical Reactions |
| Progargyl Position | I | Resonance |
| Protection | I | Ketones and aldehydes |
| Protecting Groups | II | Protecting Groups |
| Protein | II | Peptides and Proteins |
| Protic Solvent | I | Solvents |
| Proton | I | Atoms and Molecules |
| Proton NMR | I | NMR Spectroscopy |
| Protonate | I | Catalysis |
| p-Toluenesulfonate | I | Substitution/Elimination |
| p-TsCl | I | Substitution/Elimination |
| p-TsOH | I | Substitution/Elimination |
| Purine | II | Nucleic Acids |
| Pyran | II | Alcohols, Ethers & Epoxides |
| Pyridine | II | Aromatics |
| Pyrimidine | II | Nucleic Acids |
| Pyrrole | II | Aromatics |
| Pyrrolidine | II | Aromatics |
| Quantum Mechanics | I | Electron Configuration |
| Quantum Numbers | I | Electron Configuration |
| Quartet | I | NMR Spectroscopy |
| Quaternary Carbon | I | Classifying Carbon |
| Quaternary Structure | I | Peptides & Proteins |
| Quintet | I | NMR Spectroscopy |
| R = Universal Descriptor | I | Nomenclature |
| R Group | I | Nomenclature |
| Racemic | I | Stereochemistry |
| Racemic Mixture (or racemate) | I | Stereochemistry |
| Radical or Free Radical | I | Radicals |
| Radical Cation | I | Mass Spectrometry |
| Rate-Determining Step Or Rate-Limiting Step | I | Rxn Coord Diagrams |
| Reactant | I | Mechanism |
| Reaction Coordinate | I | Rxn Coord Diagrams |
| Reaction Mechanism | I | Mechanism |
| Reaction Product | I | Organic Reactions |
| Reactive Intermediates | I | Carbocations |
| Reactivity-Selectivity Principle | I | Kinetics & Thermodynamics |
| Rearrangement Reactions | I, II | Carbocations |
| Reducing Agent or Reductant | I | Redox Reactions |
| Reduction Reaction | I | Redox Reactions |
| Regioselectivity | I | Regiochemistry |
| Resolution | I | Separation Methods |
| Resonance | I | Resonance I |
| Resonance Contributor | I | Resonance I |
| Resonance Form (Prioritizing) | I | Resonance I |
| Retroaldol | II | Ketones & Aldehydes |
| Retro Diels-Alder | I | Dienes |
| Retrosynthesis | I | Intro to Synthesis |
| Ribonucleic Acid | II | Nucleic Acids |
| Ribose | II | Nucleic Acids |
| Ring Flip | I | Conformational Analysis |
| Ring Strain | I | Conformational Analysis |
| RNA | II | Nucleic Acids |
| sigma bond | I | Bonding and Hybridization |
| s orbital | I | Bonding and Hybridization |
| s* orbital | I | Bonding and Hybridization |
| S | I | Stereochemistry |
| s-cis | I | Dienes |
| s-BuLi | II | Carbon Bases |
| s-Trans | I | Dienes |
| Sanger’s Reagent | II | Nucleic Acid (Sequencing) |
| Saponification | II | Carboxylic Acid Derivatives |
| Saturated | I | Alkanes |
| Sawhorse Projection | I | Representing Organic Compounds |
| Saytseff’s Rule (Zaitzev) | I | Elimination |
| Schiff Base | II | Ketones and Aldehydes |
| sec-butyl group | I | Nomenclature |
| Secondary Structure | II | Peptides and Proteins |
| Serine | II | Peptides and Proteins |
| Sextet | I | NMR Spectroscopy |
| Side Chain | I | Nomenclature |
| Shielded | I | NMR Spectroscopy |
| Single bond | I | Bonding and Hybridization |
| Singlet | I | NMR Spectroscopy |
| Skeletal Formula | I | Representing Organic Compounds |
| SN1 Mechanism | I | Substitution |
| SN2 Mechanism | I | Substitution |
| Sodium Borohydride (NaBH4) | I | Redox Reactions |
| Sodium Hydride | I | Bases |
| Solubility | I | Solvents |
| Solute | I | Solvents |
| Solvent | I | Solvents |
| Solvent Cage | I | Solvents |
| Solvolysis | I | SN1 and E1 |
| sp orbital | I | Hybridization |
| sp2 orbital | I | Hybridization |
| sp3 orbital | I | Hybridization |
| Space-Filling Model | I | Representing Organic Compounds |
| Specific Rotation | I | Chirality |
| Spectrometry | I | Structural Elucidation |
| Spectroscopy | I | Structural Elucidation |
| Spin Quantum Number | I | Electron Configuration |
| Spin-Spin Coupling | I | Spectroscopy |
| Spirocyclic | II | Polycyclic rings systems |
| Splitting (of Peaks) | I | NMR Spectroscopy |
| Spontaneous Change | I | Thermodynamics |
| Squiggly Line | I | Representing organic compounds |
| Staggered | I | Newman Projections |
| Starting Material | I | Reactions |
| Stereocenter | I | Chirality |
| Stereochemistry | I | Stereochemistry |
| Stereoselective | I | Chirality |
| Stereospecific | I | Stereochemistry |
| Steric Effect | I | Stereoelectronics |
| Steric Hindrance | I | Conformational Analysis |
| Steric Number | I | Conformational Analysis |
| Steric Strain | I | Conformational Analysis |
| Steroid | II | Lipids and Fats |
| Stoichiometry | GEN | |
| Stretching Frequency | I | IR Spectroscopy |
| Sublimation | GEN | (s) à (g) |
| Substituent | I | Nomenclature |
| Substitution Reaction | I | Classes of reaction |
| Substrate | I | Mechanism |
| Sucrose | II | Sugars |
| Suicide Inhibitor | II | Drugs, Enzymes, & Kinetics |
| Sulfide | I | Functional Groups |
| Sulfonamide | II | Functional Groups |
| Sulfonate | I | Functional Groups |
| Sulfonate Anion | I | Functional Groups |
| Sulfonate Ester | I | Functional Groups |
| Sulfonation | II | Reactions of Benzene |
| Sulfone | I | Functional Groups |
| Sulfonic Acid | II | Functional Groups |
| Sulfonyl Chloride (thienyl chloride) | II | Substitution |
| Sulfoxide | I | Functional Groups |
| Superimposable | I | Chirality |
| Suspension | GEN | |
| Symmetric Stretching | I | IR spectroscopy |
| Syn | I | Modes of Addition |
| syn addition | I | Modes of Addition |
| Syn-periplanar | I | Dihedral geometry |
| Synthesis | I | Chemical Synthesis |
| t-BuLi | II | Strongest base you can buy |
| Tautomer | I | Tautomerization |
| Tautomerization | I | Tautomerization |
| t-Bu | I | Ter-butyl |
| t-BuOH | I | t-butyl alcohol |
| Terminal alkene | I | Alkenes |
| Terminal alkyne | I | Alkynes |
| Termination | I | Radical Reactions |
| Termolecular | I | Electrophilic Addition |
| Tertiary | I | Classifying carbon |
| Tetrahedral Carbon | I | Classifying carbon |
| Tetrahedral Intermediate | I | Carboxylic Acid Derivatives |
| Tetrahydrofuran (THF) | I | Solvents |
| Tetramethylsilane (TMS) | I | NMR Spectroscopy |
| Tetrasubstituted | I | Alkene stability |
| Theoretical Yield | GEN | Lab |
| Thermodynamic Control | I | Kinetics vs. Thermodynamics |
| Thioester | I | Functional Groups |
| Thioether | I | Functional Groups |
| Thiol | I | Functional Groups |
| Thiolate | I | Functional Groups |
| Thiophene | I | Heterocycles |
| Threonine | II | Peptides and Proteins |
| Thymine | II | Nucleic Acids |
| Titration | I | Acids and Bases |
| Toluene | I | Aromaticity |
| Torsional Strain | I | Conformational Analysis |
| Tosylate | I | Substitution |
| trans | I | Stereochemistry |
| Transesterification | II | Carboxylic Acid Derivatives |
| Transition Metals | II | Organometallics |
| Transition State | I | Reaction Mechanism |
| Tricyclic | I | Polycyclic compounds |
| Triflate | I | Super Leaving groups |
| Triflic Acid | I | Substitution |
| Triglyceride | II | Fats and Lipids |
| Triose | II | Sugars |
| Triple Bond | I | Alkynes |
| Triplet | I | NMR Spectroscopy |
| Triplet of doublets | I | NMR Spectroscopy |
| Trisubstituted | I | Alkenes |
| Tritium 3H | I | Mass Spectrometry |
| Tryptophan | II | Peptides and Proteins |
| Two-Dimensional NMR | II | NMR spectroscopy |
| Tyrosine | I | Peptides and Proteins |
| Unimolecular | I | Kinetics |
| Unsaturated | I | Fats and Lipids |
| Upfield | I | NMR Spectroscopy |
| Uracil | II | Nucleic Acids |
| Valence | I | Trends in the Periodic Table |
| Valence Bond Theory | I | Theory |
| Valence Electron | I | Electron Configuration |
| Valence Shell | I | Electron Configuration |
| Valine | I | Peptides and Proteins |
| Van der Waals Forces | I | Intermolecular Interactions |
| Van’t Hoff Rule | I | Stereochemistry |
| Vapor Pressure | LAB | |
| Vaporization | GEN | |
| Vicinal | I | Nomenclature |
| Vinyl group | I | Nomenclature |
| Vinylic Position | I | Nomenclature |
| Vitamin | II | Enzymes and Co-factors |
| VSEPR | GEN | |
| Walden Inversion | I | Stereochemistry |
| Watson-Crick Base Pair | II | Nucleic Acids |
| Wavenumber (cm-1) | I | IR Spectroscopy |
| Wavy Line | I | Representing Organic Compounds |
| Wedge | I | Representing Organic Compounds |
| Williamson Ether Synthesis | I | Named Reactions |
| Wittig Reaction | II | Ketones and Aldehydes |
| Wolff-Kischner Reduction | II | Redox Reactions |
| % Percent Yield | LAB | |
| Ylide (or ylid) | II | Ketones and Aldehydes |
| Z (Ger. Zussamen) | I | Stereochemistry |
| Zaitsev’s Rule | I | Elimination |
| Zig-Zag Structure (see line-angle) | I | Drawing Organic Structures |
| Zwitterion (‘w’ pronounced as ‘v’) | II | Peptides and Proteins |
Organic-ese Organic Chemistry
0 responses on "Glossary - Find Definitions Quickly"