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A chosen low-dimensional variable that tracks progress between reactant and product regions but generally omits other coupled degrees of freedom.
wp-chem-chemical-kineticsopenstax-chemistry-2edoe-catalystsEach relation below ends at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Reaction coordinates trace selected directions on a multidimensional free-energy or potential-energy landscape and need not define a unique trajectory.
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
wp-chem-quantum-chemistryiupac-green-booknist-chemistry-webbookEach relation below starts at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
Pump–probe signals tracked selected coordinates during ultrafast reactions and tested dynamical models beyond endpoint kinetics.
The source theory, law, entity, prediction, or structural claim is directly tested, supported, constrained, or established by the target experiment or observation. Experimental support is not final logical proof; the edge detail states exactly what was measured.
wp-chem-femtochemistrynobel-zewail-1999