disproportionation

also contains definition of: radical disproportionation
https://doi.org/10.1351/goldbook.D01799
  1. Any chemical reaction of the type , where A, A' and A'' are different chemical species. For example:
    The reverse of disproportionation is called comproportionation. A special case of disproportionation (or 'dismutation') is 'radical disproportionation', exemplified by:
    Reactions of the more general type:
    are also loosely described as radical disproportionations.
    Source:
    PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1107 [Terms] [Paper]
  2. A reversible or irreversible transition in which species with the same oxidation state combine to yield one of higher oxidation state and one of lower oxidation state. Example: The term also applies to an internal oxidation-reduction process as occurs, for example, among the iron atoms of CaFeO3, where , at Fe subarrays on lowering the temperature.
    Source:
    PAC, 1994, 66, 577. (Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)) on page 581 [Terms] [Paper]
Citation: 'disproportionation' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.D01799 RIS BibTex EndNote
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