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isotope effect, intramolecular definition
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A kinetic isotope effect observed when a single substrate, in which the isotopic atoms occupy equivalent reactive positions, reacts to produce a non-statistical distribution of isotopologue products. In such a case the isotope effect will favor the pathway with lower force constants for displacement of the isotopic nuclei in the transition state.

See also:
isoentropic definition
item definition
isoureas definition
isocoumarins definition
isoselenocyanates definition
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