Polyoxometalate complexes, application catalysis

Polyoxometalates are important reagents in analytical chemistry and they also find applications in catalysis, molecular biology, materials sciences, and medicine. A recent study of nine Ndm polyoxometalates (POM) showed their aqueous 5 mM solutions to be weakly luminescent, whereas no luminescence at all is seen for the aquo ion. In particular, the bis(POM) complexes better protect the Ndm ion from nonradiative deactivations, for instance t(4F3/2) = 411 6nsfor[Nd(PWn039)2]11- and67 2 ns for [Nd(As4W4oOi4o)]25 (But et al., 2005). 

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