A tetranuclear iron(II)–sodium complex formed from the complexation of sodium ethoxide by N,N′-ethylenebis(3-hydroxy-1-methylbut-2-enylideneaminato)iron(II)

Abstract

The reaction of N,N′-ethylenebis (3-hydroxy-1-methylbut-2-enylideneamine)(H₂acacen) with FeCl₂ in the presence of MeONa afforded the iron(II) dimeric complex [Fe(acacen)]₂, which reacted with EtONa to form a tetranuclear complex [Fe(acacen)(NaOEt)]₂, where the two iron(II) atoms are five-co-ordinate and doubly bridged by the [EtONa]ion pair.