Hydrothermal synthesis and structural characterization of a new two-dimensional vanadium oxide complex: [Co(2,2-bipy)(H2O)(VO3)2]

The hydrothermal reaction of NH4VO3, Co(NO3)2 · 6H2O, 2,2′-bipyridine, H3BO3 and H2O at 170 °C yields the new complex [Co(2,2-bipy)(H2O)(VO3)2]. The structure consists of layers, each a two-dimensional network built up of corner-sharing VO4 tetrahedral chains interconnected through [Co(2,2-bipy)(H2O)]2+ groups, and there exists a weak antiferromagnetic exchange interaction between the cobalt ions in the layers.