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合成了一个二维层状钙配位聚合物[Ca(HDHP)2(H2O)]n(H2DHP=4,6-二羟基嘧啶),并且进行了元素分析、热重、红外、荧光、单晶及粉末X射线衍射等表征。标题配合物属于单斜晶系,P 21/c空间群,a=0.816 9(3)nm,b=1.756 1(4)nm,c=0.762 3(3)nm,β=91.25(3)°,V=1.093 3(4)nm3,Z=4,R=0.041 5。每个Ca(II)离子分别与四个不同HDHP-的1个氮原子、5个羟基氧原子及1个水分子配位,形成了七配位的五角双锥构型。配体HDHP-桥联相邻的Ca(II)离子形成二维层状结构,层与层之间又进一步通过分子间氢键和π-π堆积作用形成三维超分子网络结构,同时该配合物在室温下于459 nm处表现出较强的蓝色荧光发射峰。
A two-dimensional layered calcium coordination polymer [Ca (HDHP) 2 (H2O)] n (H2DHP = 4,6-dihydroxypyrimidine) was synthesized and characterized by elemental analysis, TG, IR, And powder X-ray diffraction characterization. The title complex belongs to the monoclinic system with a space group of P 21 / c, a = 0.816 9 (3) nm, b = 1.756 1 (4) nm, c = , V = 1.093 3 (4) nm3, Z = 4, R = 0.041 5. Each Ca (II) ion coordinated with one nitrogen atom, five hydroxyl oxygen atoms and one water molecule of four different HDHP- respectively to form a seven-coordinate pentagonal bipyramid configuration. The ligand HDHP-bridging adjacent Ca (II) ions forms a two-dimensional layered structure, and further the three-dimensional supramolecular network structure is formed by intermolecular hydrogen bonding and π-π stacking between the layers. At the same time, the complex At room temperature at 459 nm showed strong blue fluorescence emission peak.