-

absolute zero ()

absorption spectrum

accuracy ,

acid ,

acid-dissociation constant (Ka)

acid anhydride

acid rain

actinide element

activated complex ()

activation energy (Ea)

active site

activity ,

activity series

addition polymerization ,

addition reaction

adsorption

alcohol

aldehyde

alkali metal

alkaline earth metal

alkane

alkene

alkyl group

alkyne

alloy

alpha decay []

alpha () helix ()

alpha particles []

amide

amine

amino acid

amorphous solid

amphiprotic

amphoteric hydroxides

amphoteric oxides

angstrom { , 1010m; }

anion

anode ( )

antibonding molecular orbital

antiferromagnetism

aquous solution

aromatic hydrocarbon

Arrhenius equation

atmosphere (atm) , ()

atom

atomic mass unit (amu) {SI ; amu, u}

atomic number

atomic radius

atomic weight

autoionization

Avogadro's hypothesis

Avogadro's law

Avogadro's number (NA) { NA}

band

band gap

band structure

bar { ; bar}

base

becquerel ()

Beers law

beta emission ()

beta particle ()

beta sheet

bidentate ligand

bimolecular reaction

biochemistry

biodegradable

body-centered lattice

bomb calorimeter

bond angle

bond dipole

bond enthalpy

bonding atomic radius

bonding molecular orbital

bonding pair

bond length

bond order

bond polarity

borane

BornHaber cycle -

Boyles law

BrnstedLowry acid -

BrnstedLowry base -

buffer capacity

buffered solution (buffer)

calcination ,

calorie { }

calorimeter

calorimetry

capillary action

carbide

carbohydrate(s)

carbon black

carbonyl group

carboxylic acid

catalyst

cathode ()

cathode ray ()

cathodic protection ( )

cation

cell potential

cellulose

Celsius scale ()

chain reaction

change(s) of state

Charles law

chelate effect

chelating agent

chemical bond

chemical change

chemical equation ,

chemical equilibrium

chemical formula

chemical kinetics

chemical nomenclature

chemical properties

chemical reaction

chemistry

chiral

chlorofluorocarbon

chlorophyll

cholesteric liquid crystalline phase

colligative property

collision model

colloids (colloidal dispersions) ( )

combination reaction

combustion reaction

common-ion effect

complementary color

complete ionic equation

complex ion (complex) ()

compound

compound semiconductor

concentration ,

concentration cell

condensation polymerization

condensation reaction

conduction band

conjugate acid

conjugate acidbase pair -

conjugate base

continuous spectrum

conversion factor

coordination compound

coordination number

coordination sphere

coordination-sphere isomer

copolymer

core electron

corrosion

covalent bond

covalent-network solid -

critical mass

critical pressure

critical temperature

crystal-field theory

crystal lattice

crystalline solid (crystal)

crystallization ()

cubic close packing

curie { ; Ci}

cycloalkane

Daltons law of partial pressures

d-d transition d-d

decomposition reaction

degenerate ()

delocalized electron

density

deoxyribonucleic acid (DNA)

desalination

deuterium { D; 1}

dextrorotatory, or merely dextro or d

diamagnetism

diatomic molecule

diffusion

dilution ()

dimensional analysis

dipole

dipoledipole force -

dipole moment

dispersion force

displacement reaction

donor atom

doping

double bond

double helix

dynamic equilibrium

effective nuclear charge

effusion

elastomer

electrochemistry

electrolysis reaction

electrolyte

electrolytic cell

electromagnetic radiation

electrometallurgy

electromotive force (emf)

electron

electron affinity

electron capture

electron configuration

electron density

electronegativity

electronic charge

electronic structure

electron-sea model

electron shell

electron spin

element

elemental semiconductor

elementary reaction

empirical formula

enantiomers

endothermic process

energy

energy-level diagram

enthalpy ,

enthalpy of formation

enthalpy of reaction

entropy

enzyme

equilibrium constant

equivalence point

ester

ether

exchange (metathesis) reaction

excited state

exothermic process

extensive property

face-centered lattice

Faradays constant (F) (F)

f-block metal f-

ferrimagnetism

ferromagnetism

first law of thermodynamics

first-order reaction

fission

folding

formal charge

formation constant

formula weight

fossil fuel(s)(?)

free energy (Gibbs free energy, G)

free radical

frequency , ,

frequency factor (A) (A)

fuel cell

functional group

fusion , ,

galvanic cell

gamma radiation

gas

gas constant (R) (R)

geometric isomerism

Gibbs free energy

glucose

glycogen

Grahams law

green chemistry

greenhouse gas(es)(?) ( )

ground state

group , , , , ,

Haber process

half-life

half-reaction

HallHroult process -

halogen

hard water

heat

heat capacity

heat of fusion ,

heat of sublimation

heat of vaporization ,

HendersonHasselbalch equation -

Henrys law

Hesss law

heterogeneous alloy

heterogeneous catalyst

heterogeneous equilibrium

hexagonal close packing

high-spin complex

hole ,

homogeneous catalyst

homogeneous equilibrium

Hunds rule

hybridization ()

hybrid orbital

hydration ()

hydride ion ,

hydrocarbon

hydrogen bonding

hydrolysis ()

hydronium ion (H3O+)

hydrophilic ()()

hydrophobic ()()

hypothesis

ideal gas

ideal-gas equation

ideal solution

immiscible liquid

indicator ,

instantaneous rate

intensive property

interhalogen

intermediate ,

intermetallic compound

intermolecular force

internal energy

interstitial alloy

ion

iondipole force -

ion exchange

ionic bond

ionic compound

ionic hydrides

ionic solids

ionization energy

ion-product constant -

irreversible process

isoelectronic series

isomer

isothermal process

isotope

joule (J) {SI , : J}

Kelvin scale

ketone

kinetic energy

kinetic-molecular theory

lanthanide contraction

lanthanide (rare earth) element

lattice energy

lattice point

lattice vector

law of constant composition

law of definite proportions

law of mass action

Le Chteliers principle

levorotatory, or merely levo or l ,

Lewis acid

Lewis base

Lewis structure

Lewis symbol

ligand

lime-soda process -

limiting reactant

line spectrum

linkage isomers

lipid ,

liquid

liquid crystal

lock-and-key model

low-spin complex

magic number

main-group element

mass

mass defect

mass number

mass percentage ,

mass spectrometer

matter ,

matter wave

mean free path

metal complex

metallic bond

metallic character

metallic elements (metals)

metallic hydrides

metallic solids ()

metalloids

metallurgy

metathesis (exchange) reaction

metric system

microstate

mineral (, )

miscible liquids

mixture

molal boiling-point-elevation constant (Kb)

molal freezing-point-depression constant (Kf)

molality

molar heat capacity

molarity

molar mass

mole {SI ; mol}

molecular compound

molecular equation

molecular formula

molecular geometry

molecular hydrides

molecularity

molecular orbital (MO)

molecular-orbital diagram

molecular-orbital theory

molecular solids

molecular weight

molecule

mole fraction

momentum

monodentate ligand

monomers

monosaccharide

nanomaterial

natural gas

nematic liquid crystalline phase ()

Nernst equation

net ionic equation

neutralization reaction

neutron

noble gases

node , ,

nonbonding pair ()

nonelectrolyte

nonmetallic elements (nonmetals) ()

nonpolar covalent bond

normal boiling point

normal melting point

nuclear binding energy

nuclear disintegration series

nuclear model

nuclear transmutation

nucleic acids

nucleon

nucleotide

nucleus

octet rule

optical isomerism ()

optically active

orbital

organic chemistry

osmosis ()

osmotic pressure

Ostwald process

overall reaction order

overlap

oxidation

oxidation number (oxidation state)

oxidation-reduction (redox) reaction -

oxidizing agent, or oxidant

oxyacid

oxyanion

ozone

paramagnetism ()

partial pressure ()

particle accelerator

parts per billion (ppb) ppb( )

parts per million (ppm) ppm( )

pascal (Pa) {SI : Pa}

Pauli exclusion principle

peptide bond

percent ionization ()

percent yield

period

periodic table

petroleum

pH pH

pH titration curve pH

phase change ()

phase diagram

phospholipid

photochemical smog

photodissociation

photoelectric effect

photoionization

photon

photosynthesis

physical changes

physical properties

pi () bond

pi () molecular orbital

Plancks constant (h)

plastic

polar covalent bond

polarizability ,

polar molecule

polyatomic ion

polydentate ligand

polymer

polypeptide

polyprotic acid

polysaccharide

porphyrin

positron emission

potential energy ()

precipitate

precipitation reaction

precision ()

pressure

pressurevolume (PV) work -

primary structure

primitive lattice

probability density (2)

product

property ,

protein

protium (H-1)

proton

pure substance

pyrometallurgy

qualitative analysis

quantitative analysis

quantum ()

quaternary structure

racemic mixture [(raceme + -ic)]

radial probability function

radioactive

radioactive series

radioactivity

radioisotope

radionuclide

radiotracer

Raoults law

rare earth element

rate constant ()

rate-determining step

rate law

reactant

reaction mechanism

reaction order

reaction quotient (Q) (Q)

reaction rate

redox (oxidation-reduction) reaction -

reducing agent, or reductant

reduction ,

rem ( )

renewable energy sources

representative (main-group) element

resonance structures (resonance forms)

reverse osmosis ()

reversible process

ribonucleic acid (RNA)

root-mean-square (rms) speed ()

rotational motion

salinity

salt ,

saponification ()

saturated solution

scientific law

scientific method

secondary structure

second law of thermodynamics

second-order reaction

sigma () bond

sigma () molecular orbital

significant figure

silica

silicates

single bond

SI units SI ()

smectic liquid crystalline phase ()

solid

solubility

solubility-product constant (solubility product) (Ksp)

solute

solution

solution alloy

solvation

solvent

specific heat (Cs)

spectator ions

spectrochemical series

spectrum

spin magnetic quantum number (ms)

spin-pairing energy -

spontaneous process

standard atmospheric pressure

standard emf, also called the standard cell potential (E)

standard enthalpy change (H)

standard enthalpy of formation (Hf )

standard free energy of formation (Gf)

standard hydrogen electrode (SHE)

standard molar entropy (S)

standard reduction potential (Ered)

standard temperature and pressure (STP)

starch

state function

states of matter

stereoisomer

stoichiometry

stratosphere

strong acid ,

strong base ,

strong electrolyte ,

structural formula

structural isomer

subatomic particle

subshell

substitutional alloy

substitution reaction

substrate

supercritical mass

supersaturated solution

surface tension

surroundings

system

termolecular reaction

tertiary structure

theoretical yield

thermochemistry

thermodynamics

thermonuclear reaction

thermoplastic

thermosetting plastic

third law of thermodynamics

titration

torr ( )

transition elements (transition metals)

transition state

translational motion

transuranium elements

triple bond

triple point

tritium { T; 1}

troposphere

Tyndall effect

uncertainty principle

unimolecular reaction

unit cell

unsaturated solution

valence band ,

valence-bond theory -

valence electron

valence orbital ()

valence-shell electron-pair repulsion (VSEPR) model - -

van der Waals equation

vapor

vapor pressure

vibrational motion

viscosity ,

volatile

voltaic (galvanic) cell ()

vulcanization ()

watt {SI : W}

wave function

wavelength

weak acid ,

weak base ,

weak electrolyte ,

work

-

A

ab initio method

absorbance ,

absorption spectroscopy

acceleration

achiral molecule

acid catalysis ()

activated complex theory

activation energy

active site

active transport

activity coefficient ,

adiabatic curve

adiabatic demagnetization ,

adiabatic expansion

adsorbate ,

adsorbent

adsorption

angular momentum

angular velocity

anharmonic

anharmonicity constant

anode ()

anti-Stokes line -

antibonding orbital

antiferromagnetic phase

antisymmetric wavefunction

Arrhenius equation

atomic force microscopy

atomic level

atomic number

atomic orbital

atomization ,

Aufbau principle ,

Auger effect

Auger electron spectroscopy

autoprotolysis ()

Avogadro's constant

Avogadro's law

azeotrope

azimuth

B

Balmer series

band gap

band spectra

band width

barometer

barrier penetration

base catalysis ()

basis set

beer-Lambert law -

-sheet structure

bimolecular reaction

binary mixture

black body

black body radiation

block-diagonal matrix

body-centred cubic

Bohr frequency condition

Bohr magneton { MB}

Bohr radius

Boltzmann distribution

Boltzmann constant

bond dissociation energy

bond dissociation enthalpy

bond length

bond order

bonding orbital

Born-Mayer equation -

Born-Oppenheimer approximation -

boson

bound state

boundary condition

Boyle temperature

Boyle's Law

Bragg's law

Bravais lattice

bulk modulus

C

cage effect

calorimeter

canonical ensemble

capillary action

carbon nanotube

Carnot cycle

cathode ()

centre of symmetry

centrifugal distortion constant

character table

charge-coupled device

charge density

charge-transfer transition

Charles's law

chemical equilibrium

chemical exchange

chemical kinetics

chemical potential

chemical shift

chemiluminescence

chemisorption

chiral molecule

cholesteric phase

chromophore

circular dichroism

Clapeyron equation

Clausius-Clapeyron equation -

close packing

closed shell

closed system

compressibility ,

compression factor

concentration cell

concentration profile

condensation

conductance

conducting polymer

conduction band

conductivity

configuration ,

confocal microscopy

constructive interference

contact angle

Cooper pair ,

coordination number

correlation diagram

Coulomb integral

Coulomb potential

counter electrode

covalent bond

critical constant

critical pressure

critical solution temperature

critical temperature

crossed molecular beams

crystallography

cubic close-packing

Curie law

Curie temperature

D

Dalton's law

de Brogile wavelength

Debye-Huckel theory -

Debye temperature

degenerate orbital

degree of dissociation

degree of freedom

degree of polymerization

delocalization energy

denaturation

density functional theory (DFT)

density of states

depolarization , ,

desorption

destructive interference

determinant

diathermic boundary

dielectric constant

differential scanning calorimeter (DSC) ()

diffraction

diffraction grating

diffraction order

diffusion

diode laser

dipole-dipole interaction -

dipole moment

dispersion ()

dissociation energy

donor-acceptore pair -

Doppler effect

drift speed

Dulong- Petit law -

dye laser

dynamic light scattering

E

effective mass

effective nuclear charge

effusion

Ehrenfest equations

eigenfunction

eigenvalue

Einstein coefficient

Einstein-Smoluchowski equation -

electric conduction

electric dipole

electrical conductivity

electrochemical cell

electrode potential

electrodialysis

electrolysis

electrolyte

electrolytic cell

electron affinity

electron density

electron diffraction

electron microscopy

electron paramagnetic resonance

electron spin resonance

electron transfer

electronegativity

electronic configuration ,

electronic partition function

electronic polarizability ,

electrophoresis

elementary reaction

emission spectroscopy

endothermic process

energy levels

ensemble

enthalpy

enthalpy of activation

equipartition theorem ()

Euler's formula

eutectic point

excimer

exciplex

exciton

exclusion principle

expansion coefficient

extensive property

extent of reaction

extinction coefficient

face-centred cubic

Faraday's constant

Fermi-Dirac statistics -

Fermi level

fermion

ferromagnetism

Fick's first law 1

Fick's second law 2

field-ionization microscopy

first-order reaction

flash desorption

flash photolysis

fluctuation

fluorescence

fluorescence microscopy

flux

Fock operator

forbidden transition

force constant

Forster theory

Fourier series

fractional distillation

Franck-Condon principle -

free energy

free-induction decay

frequency , ()

frictional coefficient

G

galvanic cell

Gaussian function

Gaussian-type orbital

Gibbs-Duhem equation -

Gibbs energy

Gibbs-Helmholtz equation -

glass electrode

glass transition temperature

group theory

H

half-life

hamiltonian

hard sphere packing

hard-sphere potential

harmonic oscillator

Hartree-Fock equations -

heat capacity

heat engine

helium-neon laser -

Helmholtz energy

Henry's law

Hermite polynomial

Hermitian operator

Hess's law

heterogeneous catalyst

hexagonal close-packing

hybrid orbital

hybridization

hydrogen bond

hydrophilic ()

hydrophobic ()

hydrostatic pressure

hyperfine coupling constant

hyperfine structure

hyperpolarizability

I

ideal gas

ideal solution

impact parameter

improper rotation

induced dipole moment

infrared

inhomogeneous broadening

integrated absorption coefficient

integration factor

intensive property

interference

internal energy

intersystem crossing

intrinsic viscosity ()

ion channel

ionic bond

ionic mobility

ionic radius

ionic strength

ionization energy

irreducible represntation

isobar

isolated system

isothermal compressibility

isothermal expansion

isotope

J

Jablonski diagram

J-J coupling J-J

Joule-Thomson coefficient -

K

kelvin ( ; K)

kinetic control

kinetic energy

klystron

Kohn-Sham equations -

Koopmans' approximation

Kronecker delta

L

Lagrange method

Lagurre polynomial

Langmuir-Blodgett film -

Laplacian

Larmor frequency

Laser-induced fluorescence

Lattice energy

Lattice point

LCAO-MO LCAO ( )

Le Chatelier's principle

Lennard-Jones parameter -

lever rule

lifetime

lifetime broadening

light scattering

line broadening

line shape

linewidth

liquid crystal

London interaction

lone pair electrons ,

long-range order

longitudinal relaxation time

low energy electron diffraction

lowest unoccupied molecular orbital

Lyman series

M

macromolecule

Madelung constant

magic-angle spinning NMR

magnetic flux density

magnetic induction

magnetic moment

magnetic quantum number

magnetic susceptibility

magnetization

magnetogyric ratio

mass spectrometry

Maxwell distribution

Maxwell relation

mean activity

mean free path

Meissner effect

mesopore

metastable phase

Michaelis constant

Michaelis-Menten equation -

microcanonical ensemble

microstate

microstructure

mirror plane

mobility

modulus ,

molecular recognition

molecular scattering

molecular spectroscopy

molecularity

moment of inertia

momentum operator

monochromator

monodisperse

monopole

Monte Carlo

multiphoton process

multiplicity

multipole

N

nanocrystal

nanotube

nanowire

near-field scanning microscopy

near infrared

nematic phase

Nernst equation

neutron diffraction

nodal plane

node

normal boiling point

normal mode

normalization

normalization constant

nuclear g-factor g-

nuclear magnetic resonance

nuclear magneton

nuclear Overhauser effect

nuclear spin

nucleation

O

oblate

observable

octahedral

octupole

open system

operator

optical density

optical Kerr effect

optical trapping

orbital

orbital angular momentum

orbital energy

order of reaction

orthogonality

orthonormality

orthorhombic system ()

osmosis ()

osmotic coefficient

osmotic pressure

Ostwald viscometer

overlap integral

overpotential

overtone ()

P

paramagnetic ()()

parity ,

partial molar enthalpy

parital molar quantity

partial molar volume

partial pressure

particle in a box

Pascal's triangle

Paschen series

path function

Pauli exclusion principle

permittivity

phase diagram ,

phase rule ()

phase transition

phosphorescence

photobleaching

photochemical reaction

photochemistry

photoelectric effect

photoelectron

photoelectron spectroscopy

photoisomerization

photovoltaic cell

physisorption

bond []

-electron []

orbital []

* transition *

Planck distribution

Planck's constant { h}

plane polarized light

point group

Poisson's equation

polar coordinates

polarizability

polarization (), ()

polarized light

polaron

polymorph ,

population inversion

position operator

potential difference

potential energy

potential energy surface

power series

pre-equilibrium

pre-exponential factor

precession ()

predissociation

primary structure

primitive lattice

principal axis

principal quantum number

probability amplitude function

probability density

prolate

propagation step

protein folding

proteomics

pseudofirst-order

Q

Q-switching Q-

quadrupole

quantization

quantum dot

quantum mechanics

quantum number

quantum yield

quenching

R

radial distribution function

radial wave function

radiative decay

radius of gyration

Ramachandran plot

Raman activity

random walk

Raoult's law

rate constant ()

rate-determining step

rate law

Rayleigh-Jeans law -

reaction coordinate

reaction entropy

reaction order

reaction quotient

reaction rate

reactive collision

recursion relation ()

reduced mass

reducible reprsentation ()

refractive index

relative permittivity

relativistic effect

relaxation effect

relaxation method

relaxation time

reorganization energy

residual entropy

resolution

resonance

resonance integral

reversible change

rigid rotator

ring current

root mean square velocity

Roothaan equation

rotational constant

rotational energy level

rotational motion

rotational partition function

rotational spectrum

rotational term

rotor

Russell-Saunders coupling -

S

saddle point

salt bridge

salting-in effect

scalar product

scanning electron microscopy

scanning tunnelling microscopy

scattering factor

scattering theory

Schrdinger equation

screening constant

Second Law of thermodynamics

second-order reaction

second virial coefficient

secular determinant

secular equation

selection rule

self-assembled monolayer

self-consistent field

semi-empirical method

semipermeable membrane

separation of variables

shear modulus

shielding constant

short-range order

bond

electron

orbital

single bond

singlet-singlet energy transfer -

Slater determinant

smectic state

solvation

space group

space lattice

space quantization

specific heat capacity

spectrometer

spectrophotometry

spectroscopic transition

spectroscopy

spectrum

spherical harmonic

spherical polar coordinates

spin

spin density

spin echo

spin label

spin-lattice relaxation -

spin-orbit coupling -

spin quantum number

spin-spin coupling -

spin-spin relaxation - ()

spontaneous emission

standard boiling point

standard cell potential

standard enthalpy

standard enthalpy of formation

standard entropy

standard free energy

standard hydrogen electrode

standard potential

standard pressure

standard reaction enthalpy

standard state

Stark effect

state function

statistical thermodynamics

steady-state approximatioin ()

Stefan-Boltzmann law -

steric factor

Stern-Gerlach experiment -

sticking probability

stimulated emission

Stirling's approximation ()

stoichiometric coefficient

stoichiometric number

subshell

superconductor

supercooling

supercritical fluid

superheating

superposition principle

supersonic beam

surface free energy

surface plasmon resonance

surface tension

surfactant

symmetric rotor

symmetry

symmetry-adapted linear combination

symmetry axis

symmetry element

symmetry operation

T

Taylor series

temperature jump

tensile strength

term symbol

thermal conductivity

thermal equilibrium

thermal motion

thermal neutrons

thermochemistry

thermodynamic equation of state

tight-binding approximation ()

time-of-flight mass spectrometer

time-resolved spectroscopy

transfer coefficient

transition dipole moment

transition state

translational motion

transmission coefficient

transmission electron microscopy

transittance

transpose matrix ()

triple point

triplet state

triplet-triplet energy transfer -

tunnelling

turnover frequency

U

ultracentrifuge

ultraviolet

uncertainty principle

undetermined multiplier

ungerade symmetry

unimolecular reaction

unit cell

unit matrix

V

vacuum ultraviolet

valence band

valence-bond theory

valence electron

valence shell

valence-shell electron pair repulsion theory(VSEPR theory)

van der Waals equation

van der Waals interaction

van't Hoff equation(equilibrium)

van't Hoff equation(osmosis)

variation principle

vibration-rotation spectra -

vibrational modes

vibrational partition function

vibrational term

virial coefficient

virial equation of state

viscosity ,

viscosity-average molar mass []

W

wave equation

wave packet

wave-particle duality -

wavelength

wavenumber ,

work function

X

X-ray diffraction X-

X-ray fluorescence X-

X-ray photoelectron spectroscopy X-

Y

Young's modulus

Z

Zeeman effect

zero-point energy

Zeroth Law of thermodynamics

-

A

Absolute configuration

Absorption spectrum

Acetal

Acetoacetic ester synthesis

Acetonide

Acetylene

Acetylenic hydrogen atom

Achiral molecule

Acid strength

Acidity constant, Ka

Activating group

Activation energy, Eact

Active hydrogen compounds

Active site

Acyl compounds

Acyl group

Acyl halide

Acyl transfer reactions

Acylation ()

Acylium ion

Addition polymer

Addition reaction ()

Adduct

Aglycone

Alcohol

Aldaric acid

Aldehyde

Alditol

Aldol

Aldol additions ()

Aldol condensation ()

Aldol reactions

Aldonic acid

Aldose

Alicyclic

Aliphatic compound

Alkaloid

Alkane

Alkene

Alkyl group

Alkylation ()

Alkyne

Allyl cation (propenyl cation) ( )

Allyl group

Allyl radical

Allylic carbocation

Alpha () anomer

Alpha () carbon

Alpha () helix

Alpha () hydrogens

Alpha () position

Alpha()-substitution reaction

Amide

Amine

Aminium salt

Amino acid residue

Amyl group

Anabolic steroid

Angle strain

annulation

Annulene

Anomer

Anomeric carbon

Anti addition ()

Anti conformation

Antiaromatic compound

Antibonding molecular orbital

Anticlinal Anticodon

anti-Markovnikov addition - ()

Antiperiplanar

Aprotic solvent

Arene

Arenium ion

Aromatic compound

Aromatic ion

Aromaticity

Aryl amines

Aryl group

Aryl halide

Atactic polymer

Atomic orbital (AO)

Atropisomer

Autoxidation

Axial bond

Azide

Azo compound

B

Base peak

Base strength

Bent bond (tau (t) bond)

Benzene

Benzenoid aromatic compound

Benzyl group

Benzylic cation

Benzylic radical

Benzylic substituent

Benzyne

Beta ()-carbonyl compound -

Beta ()-pleated sheet -

Bicyclic compounds

Bimolecular reaction

Boat conformation

Boiling point

Bond angle

Bond dissociation energy

Bond length

Bonding molecular orbital (bonding MO)

Bond-line formula -

Broadband (BB) proton decoupling

Bromination ()

Bromohydrin

Bromonium ion

Brnsted-Lowry theory of acids and bases - -

C

Cahn-Ingold-Prelog sequence rule --

Cannizzaro reaction

Carbanion

Carbene

Carbenium ion

Carbenoid

Carbocation

Carbohydrate

Carbon-13 NMR spectroscopy -13

Carbonium ion

Carbonyl group

Carboxyl group

Carboxylation

Carboxylic acid derivative

Catabolism

Catalysis

CFC (see Freon) ( )

Chain reaction

Chain-growth polymer

Chain-terminating method

Chair conformation

Chemical shift

Chiral auxiliary

Chiral molecule

Chirality

Chirality center

Chlorination

Chlorohydrin

cis-trans isomers -

Claisen condensation ()

Claisen rearrangement

Codon

Coenzyme

Cofactor

Combinatorial chemistry

Concerted reaction

Condensation polymer

Condensation reaction

Configuration

Conformation

Conformation of cyclohexane

Conformational analysis

Conformational stereoisomer

Conformer

Conjugate acid

Conjugate addition ()

Conjugate base

Conjugated protein

Conjugated unsaturated system

Connectivity

Conrotatory

Constitutional isomers

Cope rearrangement

Coplanar ()

Copolymer

Correlation Spectroscopy

COSY

Coupling ()

Coupling constant (Jab)

Covalent bond

Cracking ,

Crossed-aldol reaction

Crown ether

Cyanohydrin

Cycloaddition ()

Cycloalkane

D

d and l form d

D and L nomenclature D L

Deactivating group

Debromination ()

Decarboxylation ()

Degenerate orbital

Dehydration reaction

Dehydrohalogenation ()

Delocalization

Denaturation

Deoxyribonucleic acid (DNA) (DNA)

Deshielding

Dextrorotatory ()

Diastereomer

Diastereoselective reaction

Diastereotopic hydrogen (or ligand) ( )

1,3-Diaxial interaction 1,3-

Diazonium salt

Dieckmann condensation ()

Dielectric constant

Diels-Alder reaction -

Diene

Dienophile

Dihedral angle

Dihydroxylation ()

Dipeptide

Dipolar ion

Dipole moment

Dipole-dipole force -

Directed aldol reaction

Disaccharide

Dispersion force (or London force) ()

Disrotatory

Disulfide linkage

Double bond

Double helix

Doublet

Downfield

E

E/Z configuration E/Z

(E)/(Z) system (E)/(Z)

E1 reaction E1

E2 reaction E2

Eclipsed conformation

Edman degradation ()

Electrocyclic reaction

Electromagnetic spectrum

Electron density surface

Electron impact (EI)

Electronegativity

Electrophile

Electrophilic aromatic substitutions ()

Electrophoresis

Electrospray ionization (ESI)

Electrostatic potential map (maps of electrostatic potential, MEP)

Elimination reaction

Elimination-addition (via benzyne) -

Elution

Enamine

Enantiomeric excess (e.e.) (or enantiomeric purity) ( )

Enantiomers

Enantioselective reaction

Enantiotopic hydrogen (or ligand) ( )

Endergonic reaction

Endo cyclic ()

Endo group

Endothermic reaction

Energy

Energy of activation, Eact

Enol

Enolate

Enthalpy change

Entropy change

Enzyme

Enzyme-substrate complex -

Epimer

Epimerization ()

Epoxidation ()

Epoxide

Equatorial bond

Equilibrium constant, Keq

Equilibrium control

Essential amino acid

Essential oil

Esterification ()

Estrogen

Exchangeable protons

Exergonic reaction

Exo cyclic ()

Exo group

Exon

Exothermic reaction

F

Fat

Fatty acid

Fingerprint region

Fischer projection formula

Fluorination ()

Formal charge

Fourier transform NMR NMR

Fragmentation

Free energy of activation

Free-energy change

Free-energy diagram

Freon

Frequency,

Friedel-Crafts reaction -

Frontier orbital

Fullerene

Functional class nomenclature

Functional group

Functional group interconversion (FGI)

Furanose

Fused ring

G

Gauche conformation

GC/MS analysis GC/MS

Geminal (gem-) substituents

Gene

Genetic code

Genome

Genomics

Glycan

Glycol

Green chemistry

Grignard reagent

H

Haloform reaction

Halogenation

Hammond postulate

Hell-Volhard-Zelinskii (HVZ) reaction --

Hemiketal

Henderson-Hasselbalch equation -

Hertz (Hz)

Heteroatom

Heterocyclic amine

Heterocyclic compound

Heterogeneous catalysis

Heterolysis

Heteronuclear correlation spectroscopy (HETCOR or C-H HETCOR)

Heterotopic atom

Hofmann elimination reaction

Hofmann rule

HOMO (Highest Occupied Molecular Orbital)

Homogeneous catalysis

Homologous series

Homolysis

Homolytic bond dissociation energy

Homotopic atom

Hormone

HPLC (High-pressure liquid chromatography)

Hckels rule

Hunds rule

Hybridization of atomic orbital

Hydration ()

Hydrazone

Hydride ,

Hydroboration ()

Hydrogen abstraction ()

Hydrogen bond

Hydrogenation

Hydrogenolysis

Hydrophilic group

Hydrophobic group (or lipophilic group) ( )

Hydroxylation ()

Hyperconjugation

I

Imide

Imine

Index of hydrogen deficiency

Induced fit hypothesis

Inductive effect

Infrared (IR) spectroscopy

Inhibitor

Initiator

Intermediate

Intermolecular ()

Intramolecular ()

Intron

Inversion of configuration

Iodination ()

Ion pair

Ion-dipole force -

Ionic bond

Ionic reaction

Ion-ion force -

Ionization

Isoelectric point (pI)

Isomer

Isoprene unit

Isotactic polymer

Isotope

Isotope effect

IUPAC system IUPAC

K

Karplus correlation

Kekule structure

Ketal

Keto-enol forms -

ketone

Ketose

Killiani-Fischer synthesis -

Kinetic control ()

Kinetic energy

Kinetic enolate ()

Kinetic resolution ()

Kinetics

L

Lactam

Lactone

LCAO (linear combination of atomic orbitals)

Leaving group

Leveling effect of a solvent

Levorotatory ()

Lewis acid-base theory -

Lewis structure (or electron-dot structure) () (- )

Lipid

Lipid bilayers

Lipophilic group (or hydrophobic group) ( )

Lipoprotein

Lithium diisopropylamide (LDA) (LDA)

Locant

Lock-and-key hypothesis

LUMO (Lowest Unoccupied Molecular Orbital)

M

Macromolecule

Magnetic resonance imaging (MRI)

Malonic ester synthesis

Mannich reaction

Markovnikovs rule

Mass spectrometry (MS)

Matrix-assisted laser desorption-ionization (MALDI) (MALDI)

Mechanism

Melting Point

Meso compound

Mesylate ,

Meta director

Metabolism

Methylene

Methylene group

Micelle

Michael addition ()

Molar absorptivity

Molecular formula

Molecular ion

Molecular orbital (MO) (MO)

Molecularity

Monomer

Monosaccharide

Multiplet

Mutarotation

N

Nanotube

Natural Product

Neighboring-group participation (assistance) ()

Newman projection formula

Nitration

Nitrile

Nitrogen rule

N-nitrosoamines N-

Node

Nomenclature

Nonbenzenoid aromatic compound

Nonsteroidal anti-inflammatory durg (NSAID)

Nuclear magnetic resonance (NMR) spectroscopy (NMR)

Nucleic acids

Nucleophile

Nucleophilic addition

Nucleophilic addition-elimination -

Nucleophilic aromatic substitution

Nucleophilicity

Nucleoside

Nucleotide

O

Octet rule

Off-resonance decoupling

Olefin

Olefin metathesis

Oligonucleotide synthesis

Oligopeptide

Oligosaccharide

Optical purity

Optically active compound

Organometallic compound

Orthogonal protecting group

Ortho-para director -

Osazone

Oxidation

Oxidative cleavage

Oxidizing agent

Oxime

Oxonium ion

Oxonium salt

Oxymercuration ()

Oxymercuration-demercuration -

Ozonide

Ozonolysis ()

P

Paraffin

Parent peak

Partial hydrolysis ()

Peptide

Peptide bond

Peptide linkage

Peracid

Pericyclic reaction

Periplanar ()

Peroxide

Peroxy acid

Phase transfer catalysis

Phospholipid

Pi () bond

Pi () molecular orbital

Plane-polarized light

Polar aprotic solvent

Polar covalent bond

Polar molecule

Polar protic solvent

Polarimeter

Polarizability

Polymer ,

Polymerase chain reaction (PCR) (PCR)

Polymerization

Polypeptide

Polysaccharide

Polyunsaturated fatty acid/ester /

Potential energy

Potential energy diagram

Primary alcohol

Primary amine

Primary carbon

Primary hydrogen

Primary structure

Prochiral center

Propagation step

Prostaglandin

Prosthetic group

Protecting group

Protein

Proteome

Proteomics

Protic solvent

Proton decoupling

Proton off-resonance decoupling

Pyranose

Q

Quaternary ammonium salt

Quaternary structure

R

R/S-System R/S ()

Racemic form (racemate or racemic mixture) ( )

Racemization ()

Radical (or free radical) ( )

Radical cation

Radical halogenation ()

Radical reaction

Radical scavenger

Rate-determining step

Reaction coordinate

Reaction mechanism

Reactive intermediate

Rearrangement

Reducing agent

Reduction

Reductive amination ()

Regioselective reaction

Regiospecific reaction

Relative configuration

Replication

Residue ,

Resolution ,

Resonance

Resonance energy

Resonance structures (or resonance contributors) ( )

Restriction endonucleases

Retro-aldol reaction

Retrosynthetic analysis

Ribonucleic acid (RNA) (RNA)

Ribozyme

Ring current

Ring flip

Ring strain

Ring-closing metathesis (RCM)

Robinson annulation

S

Sanger N-terminal analysis N-

Saponification ()

Saturated compound

Sawhorse formula

Secondary amine

Secondary carbon

Secondary structure

Sharpless asymmetric epoxidation

Shielding and deshielding

Sigma () bond ()

Sigma () orbital ()

Signal splitting

Silylation ()

Singlet

Singlet oxygen

Site-specific cleavage

SN1 reaction SN1

SN2 reaction SN2

Solid-phase peptide synthesis (SPPS)

Solubility

Solvent effect

Solvolysis

Specific optical rotation

Spectroscopy

Spin decoupling

Spin-spin splitting -

Splitting tree diagrams

Staggered conformation

Step-growth polymer

Stereochemistry

Stereogenic carbon

Stereogenic center

Stereoisomer

Stereoselective reaction

Stereoselectivity

Stereospecific reaction

Steric effect

Steric hindrance

Steric strain

Steroid

Straight-chain alkane

Structural formula

Substituent effect

Substitution reaction

Substitutive nomenclature

Substrate

Sugar

Sulfonamide

Sulfonate ester

Sulfonation

Sulfonic acid

Superimposable

Suzuki reaction

Syn addition () Synclinal

Syn dihydroxylation

Syn periplanar

Syndiotactic polymer

Synthetic equivalent

Synthon

T

Tautomer

Tautomerization

Terminal residue analysis

Termination

Terpene

Terpenoids

Tertiary amine

Tertiary carbon

Tertiary structure

Tetrahedral intermediate

Thermodynamic control

Thermodynamic enolate ( )

Tollen's reagent

Torsional barrier

Torsional strain

Tosylate ,

Trans isomer

Transcription

Transesterification ()

Transition state

Translation ,

Transmutation

Triacylglycerol

Triflate ,

Tripeptide

Triple bond

Triplet

Trisaccharide

Turnover number (TON)

Two-dimensional (2D) NMR NMR

U

Ultraviolet/visible (UV/Vis) spectroscopy /

Unimolecular reaction

Unsaturated compound

Upfield

Urethane

V

Valence shell

van der Waals force

Vicinal (vic-) substituents

Vicinal coupling

Vinyl group

Vinylic substituent

VSEPR model (valence shell electron pair replusion) (VSEPR)

W

Walden inversion

Wave function

Wavelength

Wavenumber

Wax

Wedge-dashed wedge formula -

Williamson ether synthesis

Williamson synthesis

Wittig reaction

X

X-ray crystallography X-

Y

Ylide

Z

Zaitsevs rule

Ziegler-Natta catalyst -

Zwitterion

- ()()-_[1]_()()- ()()2