Isotopolog ion

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IUPAC RECOMMENDATIONS 2013
Isotopolog ion
Ions that differ only in the isotopic composition of one or more of the constituent atoms.
Note 1: For example, CH4+ and CH3D+ or 10BF3+ and 11BF3+, or the ions forming an isotope cluster corresponding to the natural isotopic abundances of the constituent atoms.
Note 2: Isotopolog is an abbreviation of isotopic homolog.
Related Term(s):
Reference(s):
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.
O. D. Sparkman. Mass Spec Desk Reference, Global View Publishing, Pittsburgh (2006).
From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.

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Gold Book

GOLD BOOK DEFINITION

IUPAC. Compendium of Chemical Terminology, 2nd ed. (the Gold Book). Compiled by A. D. McNaught and A.Wilkinson. Blackwell Scientific Publications, Oxford (1997).

Isotopolog ion

isotopologue

A molecular entity that differs only in isotopic composition (number of isotopic substitutions), e.g. CH4, CH3D, CH2D2.

Source: PAC, 1994, 66, 1077 (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1132

IUPAC Gold Book
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