【摘要】 利用水热合成方法制备了新颖的基于{Na[Mo6O12(OH)3(HPO4)(H2PO4)3]2}3-构筑单元的一维链状杂多化合物[DETA]4NaH2{Na[Mo6O12(OH)3(HPO4)(H2PO4)3]2}.8H2O(DETA=diethylenetriamine),并用元素分析I、R、UV、TG及X-射线单晶衍射对其进行了表征.该化合物属于三斜晶系,P-ī空间群,a=12.421 2(4)nm,b=12.591 1(4)nm,c=13.078 2(4)nm,α=85.411 0(10)°,β=73.313 0(10)°,γ=82.276 0(10)°,V=1 939.63(11)nm3,Z=2,R1=0.024 4.杂多阴离子{Na[Mo6O12(OH)3(HPO4)(H2PO4)3]2}3-具有夹心结构,Na离子位于2个半单元[Mo6O12(OH)3(HPO4)(H2PO4)3]2-中心.夹心型阴离子之间又以Na离子为桥形成了一维链,并通过氢键作用形成了三维网状结构.半单元[Mo6O12(OH)3(HPO4)(H2PO4)3]2-中,6个MoO6八面体通过共边连接形成一个Mo6环,4个PO4四面体位于环的一侧.更多还原

【Abstract】 A novel 1D chainlike heteropoly compound,[DETA]4NaH2{Na[Mo6O12(OH)3(HPO4)(H2PO4)3]2}·8H2O(DETA= diethylenetriamine),which is constructed from sandwich-type polyanion {Na[Mo6O12(OH)3(HPO4)(H2PO4)3]2]3-has been hydrothermally synthesized and characterized by elemental analysis,IR,UV spectrum,TG analysis and single crystal X-ray diffraction analysis.The title compound crystallizes in the triclinic system,space group P-ī,a=12.421 2(4) nm,b=12.591 1(4) nm,c=13.078 2(4) nm,α=85.411 0(10)°,β=73.313 0(10)°,γ=82.276 0(10)°,V=1 939.63(11) nm3,Z=2,R1= 0.024 4.In the sandwich-type polyanion,Na atom interconnects two building blocks [Mo6O12(OH)3(HPO4)(H2PO4)3}2-via the bridging oxo groups,and adjacent polyanions are linked by another Na+ leading to the formation of a 1D sandwich-type chain structure.Each chain is further linked to two adjacent chains by hydrogen bonds to yield a 3D framework.The six MoO6 octahedra in the [Mo6O12(OH)3(HPO4)(H2PO4)3]2-cluster construct a Mo6 ring by sharing edges.The four PO4 tetrahedra are located at one face of the Mo6 ring.更多还原