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The 51 pages that link to Transition state, each with the reason it gives.

• Chemical kineticsRelated: The barrier’s transition-state structure governs the rate of many reactions.

• EnzymeRelated: Enzymes accelerate reactions by preferentially stabilizing this high-energy state.

• CatalysisRelated: Catalysts stabilize transition states or alter their formation along an alternative pathway.

• Nucleophilic substitutionRelated: Its structure distinguishes the concerted SN2 pathway from the carbocation-forming SN1 pathway.

• Electrophilic aromatic substitutionNarrower topic: The rate-determining bond-forming step passes through a transition state en route to the arenium ion.

• Chemical reactionRelated: Bond arrangements near this point govern the pathway between reactants and products.

• Organic chemistryRelated: Its structure helps explain reaction rates and selectivity.

• Potential energy surfaceRelated: Reaction barriers are commonly measured from a surface’s transition-state saddle point.

• Activation energyRelated: Activation energy measures the energy gap between reactants and this arrangement.

• Enzyme catalysisRelated: Enzymes preferentially stabilize this arrangement, reducing the barrier to product formation.

• Reaction mechanismRelated: Each elementary step passes through a transition state, even when no intermediate forms.

• Steric hindranceRelated: Crowding can raise a transition state's energy and slow the reaction.

• Transition state theoryBroader topic: It supplies a common structural approximation to the activated complex.

• Proton transferRelated: Proton transfer rates depend on the energy and structure of this fleeting configuration.

• DecarboxylationNarrower topic: Its structure explains the energetic barrier to carbon–carbon bond cleavage.

• Active siteRelated: Enzymes accelerate reactions by preferentially stabilizing this configuration.

• Reaction coordinateBroader topic: The coordinate often identifies the configuration separating reactants from products.

• ChemoselectivityRelated: Different transition-state energies can make one functional group react preferentially.

• SN2 reactionRelated: The SN2 transition state has partial bonds to both nucleophile and leaving group.

• ATP hydrolysisRelated: Enzymes accelerate ATP hydrolysis by stabilizing arrangements along its reaction pathway.

• Catalytic cycleRelated: Catalysts often stabilize transition states along cycle steps.

• Chemical reactivityBroader topic: It is the critical structure bonds pass through as they form or break.

• Acid catalysisRelated: Catalysis changes the pathway’s activation barrier by stabilizing transition states.

• Carbocation rearrangementRelated: Migration occurs through a transition state in which the old and new bonds are partly formed.

• RegioselectivityBroader topic: Relative transition-state energies often explain a reaction’s preferred orientation.

• Asymmetric catalysisRelated: Unequal transition-state energies explain why one enantiomer forms faster.

• ConformationRelated: Reactants often need a particular conformation to reach the transition state.

• E2 reactionRelated: E2 bond breaking and bond formation occur together in its transition state.

• Chemical intermediateCompared with: Unlike an intermediate, it is not a stable point between successive reaction steps.

• Reaction intermediateCompared with: Unlike an intermediate, a transition state is not a species at a local energy minimum.

• Concerted reactionRelated: A concerted reaction passes through one transition state rather than a sequence of intermediate states.

• NeuraminidaseRelated: Neuraminidase inhibitors exploit features of the transition state during glycosidic-bond cleavage.

• Pericyclic reactionRelated: Pericyclic bond changes pass through a cyclic transition state rather than discrete ionic or radical intermediates.

• StereoselectivityRelated: Different transition-state energies can make one stereoisomer-forming pathway faster.

• Steric effectsNarrower topic: Steric crowding often affects reactivity by raising or lowering transition-state energy.

• Elementary reactionRelated: A single elementary event passes through a transition state rather than a separately stable intermediate.

• Markovnikov's ruleRelated: The favored pathway reflects differences in activation barriers, not simply product stability.

• Physical organic chemistryRelated: Its structure connects molecular geometry to the rate and selectivity of an organic reaction.

• CatalystRelated: Catalysts stabilize reaction pathways by changing the energy required to reach this arrangement.

• Hydride transferRelated: Its geometry and energy reveal whether hydride moves directly or through a bridged arrangement.

• Rate-determining stepRelated: The step’s activation barrier reflects the energy needed to reach its transition state.

• Stereoselective synthesisRelated: Competing transition states often explain why one stereoisomer forms faster than another.

• Chemical energyBroader topic: It marks the energy barrier between reactants and products.

• Organic reactionRelated: Its structure links a proposed mechanism to the reaction's rate and selectivity.

• Hammond's postulateNarrower topic: The postulate makes its structural resemblance the central prediction.

• Ahmed ZewailRelated: Femtosecond observations made it possible to investigate structures traversed during bond rearrangement.

• Entropy of activationBroader topic: Its entropy relative to the reactants defines the activation entropy.

• Activated complexRelated: The activated complex is the molecular configuration associated with this point on the reaction pathway.

• John PolanyiRelated: Reaction dynamics asks how molecules pass through this configuration and distribute energy afterward.

• Enzymes and CoenzymesRelated: Enzymes accelerate reactions largely by stabilizing this high-energy state.