Sources

'A' value A-factor

A

Arrhenius equation abstraction acceptor number acid acidity acidity function activated complex activation energy addend addition addition reaction additivity principle adduct agostic alcoholysis allylic substitution reaction alternant ambident amphiphilic amphiprotic (solvent) amphoteric anchimeric assistance anion radical anionotropic rearrangement annelation annulation annulenes antarafacial anti anti-Hammond effect anti-Markownikoff addition aprotic (solvent) aquation arenium ions aromatic aryne association asymmetric induction atomic orbital

ψ

,

φ

,

χ

attachment autocatalytic reaction automerization autoprotolysis autoprotolysis constant α-addition α-effect α-elimination π-adduct σ-adduct

Baldwin's rules Bell–Evans–Polanyi principle Bodenstein approximation Brønsted relation Bredt's rule Brønsted acid Brønsted base Bunnett–Olsen equations base basicity basicity function bathochromic shift (effect) benzynes bifunctional catalysis bimolecular binding site biradical bond bond dissociation bond energy bond migration bond number bond order

p_{rs}

bond-dissociation energy

D

borderline mechanism bridged carbocation bridging ligand π-bond σ-bond

Chemically Induced Dynamic Nuclear Polarization Cox–Yates equation Curtin–Hammett principle cage cage compound canonical form captodative effect carbanion carbenes carbenium centre carbenium ion carbenoids carbocation carbonium ion carbynes catalysis catalysis law catalyst catalytic coefficient cationotropic rearrangement cationotropy chain reaction chain transfer chain-termination reaction charge population charge-transfer complex chelate chelation cheletropic reaction chelotropic reaction chemical decomposition chemical equilibrium chemical flux

φ

chemical reaction chemical relaxation chemical species chemically induced dynamic nuclear polarization chemiflux chemoselectivity (chemoselective) chromophore cine-substitution class (a) metal ion class (b) metal ion clathrates colligation common-ion effect (on rates) compensation effect complementary binding sites complex composite reaction comproportionation concerted process condensation reaction configuration (electronic) configuration (stereochemical) conformation conjugate acid–base pair conjugated system conjugation conjugative mechanism connectivity constitution contact ion pair contributing structure coordination coordination number coordinatively saturated complex coordinatively unsaturated complex coronands correlation analysis coupling constant (spin-spin)

J

covalent bond critical micelle concentration cross-conjugation crown cryptand cryptate cybotactic region cyclization cycloaddition cycloelimination cycloreversion σ-constant

Dimroth–Reichardt E_T parameter degenerate rearrangement delocalization detachment detailed balancing (principle of) diamagnetic diastereoisomerism dienophile dimerization dipolar aprotic solvent dipolar bond dipolar cycloaddition dipole-induced dipole forces dipole–dipole interaction dismutation dispersion forces disproportionation disrotatory dissociation distonic radical cation donor number (DN) downfield driving force (affinity) of a reaction

A

dual substituent-parameter equation dyotropic rearrangement

ρσ-equation ET-value

E_{T}

effective charge effective molarity eighteen-electron rule electrocyclic reaction electrofuge electromeric effect electron acceptor electron affinity

E_{ea}

electron attachment electron density electron detachment electron donor electron transfer electron-deficient bond electron-pair acceptor electron-pair donor electron-transfer catalysis electronation electronegativity electroneutrality principle electronic effect of substituents: symbols and signs electrophile electrophilicity element effect elementary reaction elimination enantiomer enantioselectivity encounter complex encounter pair encounter-controlled rate ene reaction energy of activation energy profile enforced concerted mechanism enophile entering group enthalpy of activation

Δ^{‡} H^{⚬}

entropy of activation

Δ^{‡} S^{⚬}

epimerization epimers equilibrium control equilibrium isotope effect excess acidity excimer exciplex excited state extended Hammett equation external ion return external ion-pair return external return extrusion transformation π-electron acceptor/donor group

fast-atom bombardment (FAB) mass spectroscopy field effect flash vacuum pyrolysis fluxional fragmentation free radical frontier orbitals functional group

Gibbs energy diagram Gibbs energy of activation

Δ^{‡} G^{⚬}

Gibbs energy profile Grunwald–Winstein equation gas-phase acidity gas-phase basicity geminate pair geminate recombination general acid catalysis general base catalysis ground state group group electronegativity guest

Hammett equation Hammond principle Hansch constant Henderson–Hasselbalch equation Hildebrand parameter Hofmann rule Hückel (4n + 2) rule half life

t_{1 / 2}

halochromism hard acid hard base heat capacity of activation

Δ^{‡} C_{p}^{⚬}

heavy atom isotope effect heterobimetallic complex heteroconjugation heteroleptic heterolysis heterolytic bond-dissociation energy heterovalent hyperconjugation hidden return homo homoaromatic homoconjugation homoleptic homolysis host hybridization hydration hydrogen bond hydrolysis hydron hydrophilic hydrophobic interaction hyperconjugation hypsochromic shift η (eta or hapto)

ipso-attack identity reaction imbalance inclusion compound induction period inductive effect inductomeric effect inert inhibition initiation inner-sphere electron transfer insertion intermediate intermolecular intramolecular intramolecular catalysis intramolecular isotope effect intrinsic barrier inverse isotope effect inverse kinetic isotope effect inverted micelle ion pair ion pair return ionization ionization energy

E_{i}

ionizing power isodesmic reaction isoelectronic isoentropic isoequilibrium relationship isokinetic relationship isolobal isomer isomerization isoselective relationship isotope effect isotope exchange isotopic fractionation factor isotopic scrambling isotopologue isotopomer

Kamlet–Taft solvent parameters Kekulé structure (for aromatic compounds) Koppel–Palm solvent parameters Kosower Z-value kinetic ambiguity kinetic control kinetic electrolyte effect kinetic equivalence kinetic isotope effect

Lewis acid Lewis acidity Lewis adduct Lewis base Lewis basicity Lewis formula (electron dot or Lewis structure) London forces labile leaving group left-to-right convention levelling effect ligands line formula line-shape analysis linear free-energy relation linear solvation energy relationships lipophilic lipophilicity lone (electron) pair lyate ion lyonium ion

Markownikoff rule Meisenheimer adduct Michaelis–Menten kinetics More O'Ferrall–Jencks diagram Möbius aromaticity magnetic equivalence magnetization transfer mass-law effect matrix isolation mean life

τ

mechanism mechanism-based inhibition medium melting point (corrected/uncorrected) mesolytic cleavage mesomeric effect mesomerism metastable metathesis method of isotopic perturbation methylene methylidyne micellar catalysis micelle microscopic chemical event microscopic diffusion control migration migratory aptitude migratory insertion mixing control moiety molecular entity molecular mechanics calculation molecular metal molecular orbital molecular rearrangement molecularity molecule multi-centre bond

NIH shift n-σ* delocalization neighbouring group participation nitrenes nitrenium ions no-bond resonance nonclassical carbocation normal kinetic isotope effect nucleofuge nucleophile nucleophilic catalysis nucleophilicity

onium compounds opposing reactions optical yield orbital steering orbital symmetry order of reaction

n

outer-sphere electron transfer oxidation oxidative addition oxidative coupling σ-orbital

pH-rate profile parallel reactions paramagnetic partial rate factor pericyclic reaction periselectivity perpendicular effect persistent phase-transfer catalysis photolysis polar effect polar solvent polarity polarizability potential-energy (reaction) surface potential-energy profile pre-association pre-equilibrium (prior equilibrium) primary isotope effect primary kinetic isotope effect primitive change principle of least nuclear motion principle of microscopic reversibility product development control product-determining step promotion propagation protic proton affinity proton transfer reaction protophilic (solvent) prototropic rearrangement pseudo-catalysis pseudo-first-order reaction pseudo-zero-order reaction pseudopericyclic

quantitative structure–activity relationships

Ritchie equation radical (free radical) radical centre(s) radical combination radical ion radical pair radiolysis rate coefficient rate law rate of disappearance rate of reaction

ν

rate-controlling step rate-determining step reacting bond rules reaction reaction coordinate reaction intermediate reaction path reaction stage reaction step reactive (reactivity) reactivity index reactivity–selectivity principle rearrangement rearrangement stage reduction reductive elimination regioselectivity (regioselective) relaxation relaxation kinetics resonance resonance energy

SOMO Saytzeff rule Slater-type orbital Swain–Lupton equation Swain–Scott equation saturation transfer scavenger scrambling secondary isotope effect secondary kinetic isotope effect selectivity selectivity selectivity factor

S_{f}

shielding sigmatropic rearrangement silylene single-electron transfer mechanism single-step reaction solvation solvatochromic relationship solvatochromism solvent isotope effect solvent parameter solvolysis solvophobicity parameter

S p

sonication special salt effect specific catalysis spectator mechanism spin density spin label spin trapping stable stationary state steady state stepwise reaction stereoelectronic stereoelectronic control stereoselectivity stereospecificity steric effect steric hindrance steric isotope effect steric strain steric-approach control stopped flow strain subjacent orbital substituent atom (group) substituent electronegativity substitution reaction substrate successor complex superacid supramolecule symbiosis symproportionation synchronization (principle of nonperfect synchronization) synchronous σ, π (sigma, pi)

Taft equation tautomerism tautomerization tele-substitution telomerization termination tetrahedral intermediate thermodynamic control thermodynamic isotope effect thermolysis torquoselectivity total chemiflux transferability transformation transient (chemical) species transition coordinate transition state transition state analogue transition structure transmission coefficient transport control trapping tunnelling

umpolung unreactive unstable upfield

ρ-value valence valence isomer valence tautomerization van der Waals forces volume of activation

Δ^{‡} V

Wheland intermediate Woodward–Hoffmann rules

Yukawa–Tsuno equation ylides

Z-value Zucker–Hammett hypothesis zwitterionic compounds/zwitterions

Alphabetical Index

Additional Indexes

Version 3.0.1 (7517 Terms)

Terms (603) sourced from: 10.1351/pac199466051077