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在温和的条件下,通过Na2MoO4.H2O,FeC l3.6H2O及羟基乙叉二膦酸反应,得到了有机二膦酸配位的杂多钼酸盐Na7[Fe{Mo2O6CH3C(O)(PO3)2}2].23H2O,用X射线单晶衍射法和元素分析法确定了其结构,晶胞参数为:空间群P1,a=0.9524(11)nm,b=1.1056(13)nm,c=1.1508(13)nm,α=83.184(15)°,β=86.866(17)°,γ=83.247(17),°V=1.194(2)nm3,Z=1,R1=0.0397,wR2=0.0624(I>2σ).聚阴离子[Fe{Mo2O6CH3C(O)(PO3)2}2]7-为中心对称结构,两个碎片[Mo2O6{CH3C(O)(PO3)2}]5-被一六配位的过渡金属离子Fe3+连接,该聚阴离子具有C2h对称性.
Under mild conditions, the heteropolymolybdate Na7 [Fe {Mo2O6CH3C (O) (PO3) 2) complex coordinated by organic diphosphonic acid was obtained by the reaction of Na2MoO4.H2O, FeCl3.6H2O and hydroxyethylidene diphosphonic acid } 2] .23H2O was determined by X-ray single crystal diffraction and elemental analysis. The unit cell parameters are: space group P1, a = 0.9524 (11) nm, b = 1.1056 (13) nm, c = 1.1508 (13) nm α = 83.184 (15) ° β = 86.866 (17) ° γ = 83.247 (17) ° V = 1.194 nm 2 Z = 1 R1 = 0.0397 wR2 = 0.0624 (I > 2σ). The polyanion [Fe {Mo2O6CH3C (O) (PO3) 2} 2] 7- is a symmetric structure with two fragments [Mo2O6 {CH3C (O) Of the transition metal ions Fe3 + link, the polyanion has C2h symmetry.