Abstract
Mössbauer and magnetic studies characterize that iron is in spin free, 6S 3d5 state in sp3d2 bonding in iron (III) acetate and its chloro-derivatives. The inductive effect does not influence the s-electron density at the Fe atom. It is concluded that for trinuclear basic iron acetate, all the iron atoms are in equivalent positions and the linear chain structure proposed by Starke is untenable.