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以Na2HAsO4.7H2O,Na2WO4.2H2O,CoCl2.2H2O和2,2-′bipyridine为原料,利用水热合成法得到了分子式为H4[Co(2,2-′bipy)3][As2W18O62].18.5H2O的有机-无机复合物,并对其进行了元素分析、IR及X-射线单晶衍射表征.结构测定表明,该化合物属于六方晶系,P-6 2c空间群,晶胞参数:a=1.290 89(8)nm,b=1.290 89(8)nm,c=2.826 6(2)nm,α=90°,β=90°,γ=120°.V=4.079 2(5)nm3,Z=2,R1=0.026 5,wR2=0.065 1.标题化合物分子是由1个手性的[Co(2,2-′bipy)3]2+配阳离子,1个孤立的[As2W18O62]6-阴离子及18.5个游离的H2O分子组成.IR光谱和X-射线单晶衍射结果表明,在固态下,杂多阴离子[As2W18O62]6-与[Co(2,2-′bipy)3]2+配阳离子之间存在着相互作用.
Using Na2HAsO4.7H2O, Na2WO4.2H2O, CoCl2.2H2O and 2,2-’bipyridine as raw materials, hydrothermal synthesis was used to obtain the formula H4 [Co (2,2-’bipy) 3] [As2W18O62] The organic-inorganic composite was characterized by elemental analysis, IR and X-ray single crystal diffraction. The structure determination showed that the compound belongs to the hexagonal system P-6 2c space group with a = 1.290 Α = 90 °, β = 90 °, γ = 120 ° .V = 4.079 2 (5) nm3, Z = 2, R1 = 0.026 5, wR2 = 0.065 1. The title compound is composed of one chiral [Co (2,2-’bipy) 3] 2+ cation, one isolated [As2W18O62] 6- anion and 18.5 free H2O molecules.IR spectroscopy and X-ray single crystal diffraction results show that in the solid state, heteropolyanion [As2W18O62] 6- and [Co (2,2-’bipy) 3] 2+ with the cation There is interaction between.