peripheral atom

in organic reaction mechanisms
https://doi.org/10.1351/goldbook.P04497
A secondary @R05227-1@ (non-core) @R05227-2@ which at some point in the mechanistic @ST06775@ is situated in the molecule containing the @C01341@.
Source:
PAC, 1989, 61, 23. (System for symbolic representation of reaction mechanisms (Recommendations 1988)) on page 27 [Terms] [Paper]
Citation: 'peripheral atom' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. https://doi.org/10.1351/goldbook.P04497 RIS BibTex EndNote
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Last revised: February 24, 2014