SYNTHESIS OF METAL-COMPLEXES AND THEIR REACTIVITIES - THE DIFFERENCE OF REACTIVITIES AMONG THE MANGANESE COMPLEXES

Manganese ohelates were prepared and the autoxidation of isopropyl ben zene (IF) was carried out. (Mn-Chelate-1) showed a long induction peri od, but the other complexes (Mn-Chelate-2 and -3) which contain two or more magnesium ions in each molecule had shorter induction periods. T he difference comes from the conformation around the manganese ion. Mn (III) acetate prepared from the oxidation of manganese (II) acetate wi th potassium permanganate in acetic acid was discussed.