Stability of the Mo72Fe30 polyoxometalate buckyball in solution

Abstract

The stability of the [Mo 72Fe 30O 252(CH 3COO) 12{Mo 2O 7(H 2O)} 2{H 2Mo 2O 8(H 2O)}(H 2O) 91] · ̃150H 2O polyoxometalate (Mo 72Fe 30) with a buckyball framework structure in solution has been investi- gated as a function of the solute concentration, illuminance, the presence/absence of a polymer, and the acid- ity of the medium. The polyoxometalate ions can form association species with molecules of water-soluble nonionic polymers, such as polyvinyl alcohol and polyvinylpyrrolidone. Electrotransport properties of the polyoxometalate ions-mobility, transport number, and diffusion coefficient-have been measured. The catalytic activity and stability of Mo 72Fe 30 in a redox reaction have been evaluated. © Pleiades Publishing, Ltd., 2012.