磷酸-亚磷酸铟的合成、晶体结构与荧光性质

Construction of a Novel 3D Indium Phosphate-Phosphite:Synthesis,Crystal Structure and Fluorescence Property

以4,4'-联吡啶为结构导向剂,在水热合成体系中合成了一例具有三维阴离子骨架结构的磷酸-亚磷酸铟化合物,化学式为|(C10H10N2)1.5(H3O)3|[In18(H2O)12(HPO4)12(HPO3)16(H2PO3)6](1).单晶X-射线衍射分析结果显示,该化合物结晶在六方晶系,P63/m(No.176)空间群.In O6,HPO3和HPO4多面体共顶点交替连接形成化合物1的开放骨架结构,沿x、y轴方向存在穿插十六圆环超大孔道,客体分子4,4'-联吡啶位于其中.主—客体组装作用导致化合物1的荧光性质增强.

A novel 3D anionic indium phosphate-phosphite, formulated as ｜（ C10 H10 N2 ） 1.5 （ H3 O）3 ｜[ In18 （H2O）12（HPO4）12（HPO3）16（H2PO3）6] （1）, was hydrothermally prepared by using 4, 4′-bipyridine as a structure directing agent .Single-crystal X-ray diffraction analysis results showed that compound 1 crystallized in the hexagonal system space group P63/m （No.176） with unit cell parameters a =1.378 43（19） nm, b =1.378 43（19） nm, c=2.805 8（6） nm, V =4.617 0（13） nm3 .Compound 1 exhibited a unique pillar-layer open-framework constructed from InO6 octahedra, HPO3 pseudo-tetrahedra and HPO4 tetrahedra, resulting extra-large 16-MRs channels.The guests molecular of 4, 4’-bipyridine were deposited in these channels .Host-guest assembly leaded to an enhanced fluores-cence properties of compound 1.