论文部分内容阅读
A novel heteropoly compound, containing two kinds of coordinated cations, [K(H2O)2Ni(H2O)6]2, has been synthesized through routine process and characterized by elemental analyses, IR, 51V NMR and single crystal X-ray diffraction. It crystallizes in the triclinic system, space group P1 with a=0.873 82(17) nm, b=1.075 4(2) nm, c=1.111 1(2) nm, α=65.10(3)°, β=75.01(3)°, γ=70.63(3)°, V=0.884 8(3) nm3 and Z=1. The X-ray analysis reveals that the two kinds of coordinated cations are linked by three shared coordinated water molecules, and K+ cations coordinate with ten oxygen atoms: five of which come from V10O286- anion, the other five from water molecules. The title compound exhibits extended 2D array building up of V10O286- groups connected by ten-coordinated K+ cations. The hexahydrated nickel cations Ni(H2O)62+ lie in neat apposition to three adjacent V10O286- clusters. CSD: 413271.
A novel heteropoly compound, containing two kinds of coordinated cations, [K (H2O) 2Ni (H2O) 6] 2, has been synthesized through routine process and characterized by elemental analyzes, IR, 51V NMR and single crystal X-ray diffraction. crystallizes in the triclinic system with a = 0.873 82 (17) nm and b = 1.075 4 (2) nm, c = 1.111 1 ) °, γ = 70.63 (3) °, V = 0.884 8 (3) nm3 and Z = 1. The X-ray analysis reveals that the two kinds of coordinated cations are linked by three shared coordinated water molecules, and K + cations coordinate with ten oxygen atoms: five of which come from V10O286- anion, the other five from water molecules. The title compound exhibits extended 2D array building up of V10O286- groups connected by ten-coordinated K + cations. The hexahydrated nickel cations Ni (H2O) 62+ lie in neat apposition to three adjacent V10O286- clusters. CSD: 413271.