1-Chloro-4-iodobutane is a halogenated hydrocarbon. It is an α,ω-dihaloalkane and undergoes electrogenerated Nickel(I) salen (N,N′-bis(salicylidene)ethylenediamine) catalyzed reduction to afford 1,8-dichlorooctane. Electrochemical reduction of 1-chloro-4-iodobutane at glassy carbon cathode has been investigated by cyclic voltammetry and controlled-potential electrolysis.