peripheral atom

in organic reaction mechanisms
https://doi.org/10.1351/goldbook.P04497
A secondary @[email protected] (non-core) @[email protected] which at some point in the mechanistic @[email protected] is situated in the molecule containing the @[email protected]
Source:
PAC, 1989, 61, 23. (System for symbolic representation of reaction mechanisms (Recommendations 1988)) on page 27 [Terms] [Paper]