Abstract
The cluster compounds [Fe III 3O(CH 3CO 2) 6(H 2O) 3]CH 3COO, [Fe III 2Fe IIO(CH 3COO) 6(H 2O) 3], [Fe III 2Co IIO(CH 3COO) 6(H 2O) 3], [Fe III 2Ni IIO(CH 3COO) 6(H 2O) 3], [V III 2Fe IIO(CH 3COO) 6(H 2O) 3] and [V III 2Co IIO(CH 3COO) 6(H 2O) 3 were prepared by new synthetic routes. Homometallic clusters can be isolated from a clean reaction between the metal hydroxide and acetic acid. The heterobimetallic compounds were obtained by the reaction of the iron(III) or vanadium(III)-homometallic cluster, in water, with an excess of iron(II), cobalt(II) and nickel(II) acetates. The new route give pure products with much higher yields when compared with the classical methods. The compounds were characterized by atomic absorption and elemental analysis, electrochemistry and IR spectroscopy.
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