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displacive transitiondisruptor

disproportionation

Also contains definition of: radical disproportionation

Synonym: dismutation

  1. Any chemical reaction of the type D01799-0, where A, A' and A'' are different chemical species. For example:
    D01799-1
    The reverse of disproportionation is called comproportionation. A special case of disproportionation (or 'dismutation') is 'radical disproportionation', exemplified by:
    D01799-2
    Reactions of the more general type:
    D01799-3
    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
    The following somewhat more restricted usage of the term prevails in inorganic chemistry.
    PAC, 1994, 66, 577 (Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)) on page 581
  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: D01799-4 The term also applies to an internal oxidation-reduction process as occurs, for example, among the iron atoms of CaFeO3, where D01799-5, 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
InChI=1/Au/q+1
ZBKIUFWVEIBQRT-UHFFFAOYAS
InChI=1/Au/q+3
CBMIPXHVOVTTTL-UHFFFAOYAF
InChI=1/Au
PCHJSUWPFVWCPO-UHFFFAOYAO
InChI=1/C2H5/c1-2/h1H2,2H3
QUPDWYMUPZLYJZ-UHFFFAOYAE
InChI=1/C2H5/c1-2/h1H2,2H3
QUPDWYMUPZLYJZ-UHFFFAOYAE
InChI=1/C2H4/c1-2/h1-2H2
VGGSQFUCUMXWEO-UHFFFAOYAE
InChI=1/C2H6/c1-2/h1-2H3
OTMSDBZUPAUEDD-UHFFFAOYAK
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Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. doi:10.1351/goldbook.
Last update: 2012-08-19; version: 2.3.2.
DOI of this term: doi:10.1351/goldbook.D01799.
Original PDF version: http://www.iupac.org/goldbook/D01799.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.
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