摘要
A new oxohalogenide compound BaTCoV6021C14 was synthesized by a conven- tional high-temperature solid state reaction. The title compound is found to crystallize in the orthorhombic system of space group Cmcm with a = 16.726（4）, b = 10.568（3）, c = 14.808（4） A, V = 2617.4（12） A3, Z= 2, Mr = 1803.68, Dc= 3.411 g/cm3,/t= 11.396 mm1, F（000） = 3172, the final R = 0.0314 and wR = 0.0750 for 1531 observed reflections with I 〉 2δ（/）. Co2＋ ions are coordinated by four O and two Cl atoms, forming a COO4C12 octahedron, while V atoms are tetrahedrally coordinated, forming （V207）4＂ groups. The structure of Ba7CoV6021Ch exhibits a pseudo-one- dimensional chain running along the c-axis. Magnetic measurements confirm that Ba7CoV6021Cl4 shows a paramagnetic behavior down to 2 K.
A new oxohalogenide compound BaTCoV6021C14 was synthesized by a conven- tional high-temperature solid state reaction. The title compound is found to crystallize in the orthorhombic system of space group Cmcm with a = 16.726（4）, b = 10.568（3）, c = 14.808（4） A, V = 2617.4（12） A3, Z= 2, Mr = 1803.68, Dc= 3.411 g/cm3,/t= 11.396 mm1, F（000） = 3172, the final R = 0.0314 and wR = 0.0750 for 1531 observed reflections with I 〉 2δ（/）. Co2＋ ions are coordinated by four O and two Cl atoms, forming a COO4C12 octahedron, while V atoms are tetrahedrally coordinated, forming （V207）4＂ groups. The structure of Ba7CoV6021Ch exhibits a pseudo-one- dimensional chain running along the c-axis. Magnetic measurements confirm that Ba7CoV6021Cl4 shows a paramagnetic behavior down to 2 K.
基金
supported by the MOST projects,the National Basic Research Program of China(No.2012CB921701)
National Natural Science Foundation of China(No.21403234)
