Entries from:
PAC, 1996, 68, 149. A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996), doi:10.1351/pac199668010149
activated complexactivationactivation energy (Arrhenius activation energy)adiabaticadiabatic transition-state theoryadiabatic treatments of reaction ratesangular distributionArrhenius equationatom–molecule complex mechanismattractive potential-energy surfaceattractive–mixed–repulsive
(AMR) classificationbond-energy-bond-order methodbranching ratioBrønsted relationcage effectcanonical rate constantcanonical variational transition-state theory
(CVTST)
catalystcatalytic coefficientcentrifugal barrierchain branchingchain carrierchain initiationchain length, 
chain reactionchain-propagating reactionchain-termination reactionchannelchaperonchemical activationchemical induction (coupling)chemiluminescencecol (saddle point)collinear reactioncollision cross-section, 
collision density, 
collision efficiency, 
collision frequency, 
collision numbercollision theorycompetitioncomplex mechanismcomplex reactioncomplex-mode reactioncomposite mechanismconventional transition-state theoryconventional true valuecritical energy (threshold energy)degenerate chain branchingdensity of states, 
, 
detailed balancing (principle of)diabatic couplingdiffusion controldirect reactiondividing surfaceelastic collisionelastic scattering in reaction dynamicselementary reactionencounterendergonic (or endoergic) reactionendothermic reactionenergized speciesenergy of activationenthalpy of activation,
entrance channelentropy of activation, 
equilibrium reactionexergonic (exoergic) reactionexit channelexothermic reactionextent of reaction, 
feedback in kineticsgeminate recombinationgeneral acid–base catalysisgeneralized transition-state theoryGibbs energy diagramGibbs energy of activation (standard free energy of activation),
Gibbs energy profilegradual (sudden) potential-energy surfacehalf life, 
heat capacity of activation, 
impact parameter, 
improved canonical variational transition-state theory
(ICVTST)
indirect reactioninduction periodinelastic scatteringinformation theoryinhibitioninitial (final) state correlationsinitiationinitiatorintermediateintrinsic activation energy,
isotope effectkinematicskinetic activity factorkinetic theory of collisionsLangmuir–Hinshelwood mechanismLangmuir–Rideal (Rideal–Eley) mechanismlight-atom anomalyline-of-centres modelLondon–Eyring–Polanyi (LEP) methodLondon–Eyring–Polanyi–Sato (LEPS) methodmacroscopic diffusion controlmacroscopic kineticsMarcus–Coltrin pathMichaelis–Menten kineticsMichaelis–Menten mechanismmicrocanonical rate constantmicrocanonical variational transition-state theory
(µVTST)
microscopic diffusion control (encounter control)microscopic kineticsmicroscopic reversibility at equilibriumminimum density of states criterionmixed energy releasemixing controlmodified Arrhenius equationmolecular beamsmolecular dynamicsmolecular kineticsmolecularityNewton diagramnon-equilibrium reactionnonadiabatic couplingorder of reaction,
oscillating reactionoverall activation energypartial microscopic diffusion control (encounter
control)
phase-space theoryphotochemical equivalencepositive feedbackpotential-energy profilepotential-energy (reaction) surfacepre-equilibrium (prior equilibrium)pre-exponential factor,
prior distribution,
productproduct state distributionpseudo rate constantquantum-mechanical tunnellingquasi-classical trajectory (QCT) methodquasi-equilibriumrate of consumption,
or
rate of conversion,
rate of disappearancerate of formation,
or
rate of reaction, 
rate-controlling steprate-determining step (rate-limiting step)reactantreaction barrierreaction coordinatereaction cross-section,
reaction dynamicsreaction intermediatereaction path degeneracyreaction probability,
reactive complexreactive scatteringreagentrebound reactionrelaxationrelaxation kineticsrelaxation timerepulsive potential-energy surfaceretarderRice–Ramsperger–Kassel (RRK) theoryRice–Ramsperger–Kassel–Marcus (RRKM) theoryselectivityseparability assumptionspecific acid–base catalysisspectator-stripping reactionstate-to-state kineticssteady state (stationary state)stepwise reactionsteric factorstoichiometric number, 
stoichiometrystripping reactionstrong collisionsum of states,
surprisal analysissurprisal,
symmetry number,
temperature jumpthird bodythreshold energy,
trajectory in reaction dynamicstransient phase (induction period)transition speciestransition state theorytransmission coefficientvariational transition state theoryvibrationally adiabatic transition-state theoryvolume of activation,
weak collision 
