Synthesis and structure of vanadoperiodate

Two vanadoperiodates of the decavanadate structure, [IV9O28]4− and [HIV9O28]3−, have been synthesized and structurally characterized. The I atom replaces only the central V atom of [V10O28]6− in [HIV9O28]3−, while replacement at both central and capping sites is observed for [IV9O28]4−. The proton in [HIV9O28]3− is probably attached to one of the oxygen atoms that bridges two V atoms. The [HIV9O28]3− anion is structurally very similar to [HTeV9O28]4−. This structural similarity is reminiscent of that observed between the Anderson-type molybdotellurate and molybdoperiodate, [TeMo6O24]6− and [IMo6O24]5−.

Two new molecular oxides of the decavanadate structure have been synthesized and structurally characterized. The effect of replacing the central V atom of the decavanadate with a hetero atom is also discussed.Figure optionsDownload as PowerPoint slide