Oxygenation of a co-ordinated tetra-azamacrocycle: the X-ray structure determination of µ-oxo-bis{17,18,19,20-tetrahydro-18,19-dioxotribenzo[e,i,m][1,4,8,11]tetra-azacyclotetradecinato(2–)iron(III)}
Abstract
The –N–CH2–CH2–N– bridge in the neutral macrocyclic iron(III) complex (1a) is readily oxygenated to give a µ-oxo complex of the corresponding oxamido ligand.