Synthesis and magnetic properties of two polyoxovanadates

Two decavanadat polyoxometalate [Na3(H2O)12][Ni(H2O)6]·(1)和[Na10(H2O)6][Co(H2O)6]·[VⅤ4VⅣ6O28](2) have been synthesized under conventional conditions.X-ray diffraction result reveals that the compound 1 crystallizes in the monoclinic.space group P2(1),a=0.902 04 nm,b=1.129 99 nm,c=1.175 15 nm,α=105.185 0°,β=97.327 0°,γ=100.838 0(10)°,V=1.114 15 nm3,Z=1,compound 2 crystallizes in the monoclinic space group P2(1),a=0.904 14 nm,b=1.130 84 nm,c=1.175 15 nm,α=105.18°,β=97.516 0°,γ=100.956 0(10)°,(10),V=1.117 59 nm3,Z=1,The study of magnetic properties indicates that the two compounds exhibit antiferromagnetic coupling interactions.