monomolecular reaction


mon·o·mo·lec·u·lar re·ac·tion

a reaction involving a single molecule (for example, decomposition, intramolecular rearrangement, intramolecular oxidation or reduction), even if a catalytic agent, such as acid or alkali, is present in large excess, on a molecular basis, or is not rate-determining; such reactions are usually first-order reactions. Compare: molecularity. Synonym(s): unimolecular reaction