【摘要】 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.更多还原

【Abstract】 The HEDPA coordinated heteropolyoxometalate Na7[Fe{Mo2O6CH3C(O)(PO3)2}2]·23H2O is synthesized by the reaction of Na2MoO4·H2O,FeCl3·6H2O and HEDPA under the normal conditions.The result obtained by methods of single crystal X-ray diffraction and elemental analysis shows that the crystal belongs to triclinic system,space group p1,with 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).The structure of anion [Fe{Mo2O6CH3C(O)(PO3)2}2]7-is centro-symmetry.The two fragments are bridged by a transition metal ion Fe3+ which coordinated with six oxygen atoms.The anion reveals C2h symmetry.更多还原