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PAC, 1996, 68, 149. A glossary of terms used in chemical kinetics, including reaction dynamics (IUPAC Recommendations 1996), doi:10.1351/pac199668010149

activated complex
activation energy (Arrhenius activation energy)
adiabatic transition-state theory
adiabatic treatments of reaction rates
angular distribution
Arrhenius equation
atom–molecule complex mechanism
attractive potential-energy surface
attractive–mixed–repulsive (AMR) classification
bond-energy-bond-order method
branching ratio
Brønsted relation
cage effect
canonical rate constant
canonical variational transition-state theory (CVTST)
catalytic coefficient
centrifugal barrier
chain branching
chain carrier
chain initiation
chain length, δ
chain reaction
chain-propagating reaction
chain-termination reaction
chemical activation
chemical induction (coupling)
col (saddle point)
collinear reaction
collision cross-section, σ
collision density, Z AA
collision efficiency, B c
collision frequency, z A A
collision number
collision theory
complex mechanism
complex reaction
complex-mode reaction
composite mechanism
conventional transition-state theory
conventional true value
critical energy (threshold energy)
degenerate chain branching
density of states, N E,r E
detailed balancing (principle of)
diabatic coupling
diffusion control
direct reaction
dividing surface
elastic collision
elastic scattering in reaction dynamics
elementary reaction
endergonic (or endoergic) reaction
endothermic reaction
energized species
energy of activation
enthalpy of activation, Δ ‡ H °
entrance channel
entropy of activation, Δ ‡ S °
equilibrium reaction
exergonic (exoergic) reaction
exit channel
exothermic reaction
extent of reaction, ξ
feedback in kinetics
geminate recombination
general acid–base catalysis
generalized transition-state theory
Gibbs energy diagram
Gibbs energy of activation (standard free energy of activation), Δ ‡ G o
Gibbs energy profile
gradual (sudden) potential-energy surface
half life, t 1 / 2
heat capacity of activation, Δ ‡ C p o
impact parameter, b
improved canonical variational transition-state theory (ICVTST)
indirect reaction
induction period
inelastic scattering
information theory
initial (final) state correlations
intrinsic activation energy, E a,i
isotope effect
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 (µVTST)
microscopic diffusion control (encounter 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
Newton diagram
non-equilibrium reaction
nonadiabatic coupling
order of reaction, n
oscillating reaction
overall activation energy
partial microscopic diffusion control (encounter 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 state distribution
pseudo rate constant
quantum-mechanical tunnelling
quasi-classical trajectory (QCT) method
rate of consumption, v n , B or v c , B
rate of conversion, ξ .
rate of disappearance
rate of formation, v n , y or v c , y
rate of reaction, v
rate-controlling step
rate-determining step (rate-limiting step)
reaction barrier
reaction coordinate
reaction cross-section, σ r
reaction dynamics
reaction intermediate
reaction path degeneracy
reaction probability, P r
reactive complex
reactive scattering
rebound reaction
relaxation kinetics
relaxation time
repulsive potential-energy surface
Rice–Ramsperger–Kassel (RRK) theory
Rice–Ramsperger–Kassel–Marcus (RRKM) theory
separability assumption
specific acid–base catalysis
spectator-stripping reaction
state-to-state kinetics
steady state (stationary state)
stepwise reaction
steric factor
stoichiometric number, ν
stripping reaction
strong collision
sum of states, P ɛ
surprisal analysis
surprisal, s
symmetry number, s
temperature jump
third body
threshold energy, E 0
trajectory in reaction dynamics
transient phase (induction period)
transition species
transition state theory
transmission coefficient
variational transition state theory
vibrationally adiabatic transition-state theory
volume of activation, Δ ‡ V
weak collision