Etude des Succinates Simples et Complexes de Cobalt(II)

Abstract

Cobalt(II) succinate tétrahydraté, CoC4H4O·4H2O and anhydrous (amorphous and crystalline) have been prepared and studied by i.r. and u.v.–visible spectroscopy, magnetic susceptibility, thermogravimetry, and by X-ray diffraction. The alkaline salts of cobalt succinate M2Co2(C4H4O4)3, where M = K+ and NH4+ have also been prepared for the first time. The staggered gauche and trans conformations of succinic acid have been found to be present in the complexes. The cage-like structure has not been found in any of the Co(II) carboxylates studied here.