Term: charge-transfer reaction
https://doi.org/10.1351/goldbook.C01005

Definition:
An ion/neutral species reaction wherein the total charge on the reactant ion is transferred initially to the reactant neutral species so that the reactant ion becomes a neutral entity. Considering some of the possible reactions of ions M2+, M+ and M− with a neutral species X, these would be further categorized as follows: C01005-1.png C01005-2.png C01005-3.png All are ion/neutral species reactions and also charge permutation reactions.

Images:
1) Not defined (https://goldbook.iupac.org/img/inline/C01005-1.png) 
2) Not defined (https://goldbook.iupac.org/img/inline/C01005-2.png) 
3) Not defined (https://goldbook.iupac.org/img/inline/C01005-3.png) 

Source: PAC, 1991, 63, 1541. 'Recommendations for nomenclature and symbolism for mass spectroscopy (including an appendix of terms used in vacuum technology). (Recommendations 1991)' on page 1555 (https://doi.org/10.1351/pac199163101541)

Citation: 'charge-transfer reaction' 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.C01005

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