The synthesis and crystal structure of two new isopolyoxoanion complexes: [M 2 (DMF) 12 (Mo 6 O 19 ) 2 ] (M = Co, Ni, DMF = dimethylformamide).

Two solid-state materials, {M 2 (DMF) 12 [Mo 6 O 19 ] 2 } (M = Co, Ni, DMF = dimethylformamide), have been designed, synthesized under mild reaction conditions and characterized by elemental analyses, IR spectra and single-crystal X-ray diffraction. The structures exhibit extended 2D networks through hydrogen bonds among polyanions and [M(DMF) 6 ] 2+ ; hydrogen-bonding interactions are responsible for the stability of the crystal. [ABSTRACT FROM AUTHOR]