rearrangement ion

in mass spectrometry
https://doi.org/10.1351/goldbook.R05195
An electrically charged species, involving a molecular or parent ion, in which atoms or groups of atoms have transferred from one portion of a molecule or molecular @M03968@ to another during the @I03183@ @F02506@ processes.
Sources:
Orange Book, 2nd ed., p. 205 [Terms]
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 1550 [Terms] [Paper]