cluster ion

in mass spectrometry
https://doi.org/10.1351/goldbook.C01115
An ion formed by the combination of more ions or atoms or molecules of a chemical species often in @[email protected] with a second species. For example, [(H2O)nH]+ is a @[email protected] ion.
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 1549 [Terms] [Paper]
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). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: October 7, 2008