N,N-dialkylcarbamato oligonuclear complexes of iron(II), including [{Fe4(µ4-O)(O2CNPri2)6}2], the first crystallographically established uncharged µ-oxo complex of iron(II)

Abstract

The FeCl₂–R₂NH–CO₂ synthetic route yielded N,N-dialkylcarbamato complexes of iron(II), [{Fe(O₂CNR₂)₂}_m](m= 6, R = Et); controlled hydrolysis of the isopropyl derivative under an inert atmosphere led to the title compound, the first member of the crystallographically new class of uncharged iron(II) complexes containing the bridging oxide ligand.