Abstract: | Na2BaCuV2O8: A New Structure Type of the Alkaline-Alkaline Earth Copper Oxovanadates Single crystals of Na2BaCuV2O8 were prepared by a high temperature flux. It crystallizes with monoclinic symmetry space group C–C2/c, a = 9.4329 Å, b = 5.6858 Å, c = 14.0488 Å, β = 92.344° Z = 4 and represents a new structure type. The crystal structure show VO4 tetrahedra, stretched CuO6 octahedra, trigonal bipyramids around Na+ and a BaO10+2 polyedron. |