https://doi.org/10.1351/goldbook.N04246
A
leaving group
that carries away the bonding electron pair. For example, in the hydrolysis
of an alkyl chloride, Cl− is the nucleofuge. The tendency of atoms or groups to depart with the bonding electron pair is called nucleofugality. The adjective is nucleofugal.See also:
electrofuge
, nucleophile