高等学校化学研究 ›› 2000, Vol. 16 ›› Issue (3): 198-202.
LIU Zong-rui1,2, XU Lin1, WANG En-bo1, PENG Jun1, HU Chang-wen1, XING Yan3, LIN Yong-hua3, JIA Heng-qing3
LIU Zong-rui1,2, XU Lin1, WANG En-bo1, PENG Jun1, HU Chang-wen1, XING Yan3, LIN Yong-hua3, JIA Heng-qing3
摘要: A novel dimer-tungstovanadate, (H3O)4[VW12 O40 Na(H2O)4]2, was hydrothermally synthesized and structurally characterized by single crystal X ray diffraction, IRspectra, TGA-DSC thermal analysis and polarograpy. The yellowish crystal crystallized in the triclinic system, space group P1, a =1.4645(3) nm, b =1.4686(3) nm, c =1.4111(3) nm, α=111.82(2)°, β=93.17(3)°, γ=117.47(3)°, V =2.2106(8) nm3, Z=1, Dc=4.552 g·cm3 , λ(Mo Kα )=0.071073 nm, μ =31.402 mm-1 , F(000)=2648, R =0.0780. The title compound consists of two Keggin structure units linked together with two hydrated sodium cations to form a dimer with a porous structure with the pore dimension of 0.766 nm×0.7785 nm.