The first solid composed of {As4V16O42(H2O)} clusters

A new polyoxovanadate [Zn-2(dien)(3)]{[Zn(dien)](2)As4V16O42(H2O)} center dot 3H(2)O (1, dien = diethylenetriamine) has been hydrothermally synthesized and structurally characterized by EA, IR, TGA, magnetic measurement and single crystal X-ray diffraction. X-Ray diffraction analyses reveal that 1 exhibits the first {As4V16O42(H2O)}-containing polyoxometalate. In 1, the adjacent {As4V16O42(H2O)} clusters are linked to each other through dual mono-nuclear zinc complexes {Zn(dien)} to form one-dimensional anionic chains with isolated dinuclear zinc complexes {Zn2(dien) 3} occupying the interchain regions as charge compensation. The study of the magnetic susceptibility demonstrates the presence of antiferromagnetic interaction between V-IV cations in 1.