Alphabetical Index

Additional Indexes

Physical Constants Units of Measure Physical Quantities SI Prefixes Ring Index General Formulae Exact Formulae Source Documents Terms by IUPAC Div.

Version 3.0.1 (6463 Terms)

DOI: 10.1351/goldbook

Jan Kaiser - Content Editor
Stuart Chalk - Technical Editor
Joint Subcommittee
on the IUPAC Gold Book

Terms sourced from: 10.1351/pac199668010149

"A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996)", Laidler, K.J., Pure and Applied Chemistry 1996, 68(1), 149

activated complex activation activation energy adiabatic adiabatic transition-state theory adiabatic treatments of reaction rates angular distribution Arrhenius equation atom–molecule complex mechanism attractive potential-energy surface attractive–mixed–repulsive classification Arrhenius A factor \(A\)

bond-energy-bond-order method branching ratio Brønsted relation beam-gas experiments

cage effect canonical rate constant canonical variational transition-state theory catalyst catalytic coefficient centrifugal barrier chain branching chain carrier chain initiation chain length \(\delta\)chain reaction chain-propagating reaction chain-termination reaction channel chaperon chemical activation chemical induction (coupling) chemiluminescence col collinear reaction collision cross-section \(\sigma\)collision density \(Z_{\text{AA}}\)collision efficiency \(B_{\text{c}}\)collision frequency \(z_{\text{A}}(\text{A})\)collision number collision theory competition complex mechanism complex reaction complex-mode reaction composite mechanism conventional transition-state theory conventional true value critical energy coupling crossed molecular beams

degenerate chain branching detailed balancing (principle of) diabatic coupling diffusion control direct reaction dividing surface de-energization efficiency degree of activation degree of inhibition density of states D01593-0,D01593-1

elastic collision elastic scattering elementary reaction encounter endergonic reaction endothermic reaction energized species energy of activation enthalpy of activation \(\Delta ^{\ddagger}H^{\,\unicode{x26ac}}\)entrance channel entropy of activation \(\Delta ^{\ddagger}S^{\,\unicode{x26ac}}\)equilibrium reaction exergonic reaction exit channel exothermic reaction extent of reaction \(\xi\)early-downhill surface encounter control

feedback

geminate recombination general acid–base catalysis generalized transition-state theory Gibbs energy diagram Gibbs energy of activation \(\Delta ^{\ddagger}G^{\,\unicode{x26ac}}\)Gibbs energy profile gradual (sudden) potential-energy surface

half life \(t_{1/2}\)heat capacity of activation \(\Delta ^{\ddagger}C_{p}^{\,\unicode{x26ac}}\)

impact parameter \(b\)improved canonical variational transition-state theory indirect reaction induction period inelastic scattering information theory inhibition initial (final) state correlations initiation initiator intermediate intrinsic activation energy \(E_{\text{a,i}}\)isotope effect

kinematics kinetic activity factor kinetic theory of collisions

Langmuir–Hinshelwood mechanism Langmuir–Rideal (Rideal–Eley) mechanism light-atom anomaly line-of-centres model London–Eyring–Polanyi (LEP) method London–Eyring–Polanyi–Sato (LEPS) method

macroscopic diffusion control macroscopic kinetics Marcus–Coltrin path Michaelis–Menten kinetics Michaelis–Menten mechanism microcanonical rate constant microcanonical variational transition-state theory microscopic diffusion control microscopic kinetics microscopic reversibility at equilibrium minimum density of states criterion mixed energy release mixing control modified Arrhenius equation molecular beams molecular dynamics molecular kinetics molecularity

Newton diagram non-equilibrium reaction nonadiabatic coupling

order of reaction \(n\)oscillating reaction overall activation energy

partial microscopic diffusion control phase-space theory photochemical equivalence positive feedback potential-energy profile potential-energy (reaction) surface pre-equilibrium (prior equilibrium) pre-exponential factor \(A\)prior distribution \(P_{0}\)product product state distribution pseudo rate constant

quantum-mechanical tunnelling quasi-classical trajectory (QCT) method quasi-equilibrium

rate of conversion \(\dot{\xi}\)rate of disappearance rate of reaction \(\nu\)rate-controlling step rate-determining step reactant reaction barrier reaction coordinate reaction cross-section \(\sigma_{\text{r}}\)reaction dynamics reaction intermediate reaction path degeneracy reaction probability \(P_{\text{r}}\)reactive complex reactive scattering reagent rebound reaction relaxation relaxation kinetics repulsive potential-energy surface retarder Rice–Ramsperger–Kassel (RRK) theory Rice–Ramsperger–Kassel–Marcus (RRKM) theory rate of consumption R05146-0,R05146-1 rate of formation R05152-0,R05152-1 relaxation time

selectivity separability assumption specific acid–base catalysis spectator-stripping reaction state-to-state kinetics stepwise reaction steric factor stoichiometric number \(\nu\)stoichiometry stripping reaction strong collision sum of states \(P(\varepsilon)\)surprisal analysis surprisal \(s\)symmetry number \(s\)steady state

temperature jump third body threshold energy \(E_{0}\)trajectory transient phase (induction period) transition species transition state theory transmission coefficient

variational transition state theory vibrationally adiabatic transition-state theory volume of activation \(\Delta ^{\ddagger}V\)

weak collision