采用溶剂热法,合成了一个具有新颖三维超分子结构的亚磷酸-草酸镓化合物Ga(HPO3)(C2O4)(C3N2H4)·(C3N2H5)(化合物1),并通过粉末X-射线衍射,红外光谱、热重、ICP和CHN元素分析对化合物进行了表征.结果表明:该化合物属于正交晶系,Pnma空间群,晶胞参数为a=1.3288(3) nm,b=0.63614(13) nm,c=1.5364(3)nm,β=90°,Z=4.在化合物1中存在一个由[HPO3]单元和GaO5N八面体通过共顶点的氧原子组成的四元环梯形链.值得注意的是草酸根离子和咪唑离子镶嵌在一维链的两侧,相邻的两个链上的咪唑分子和草酸单元之间存在着强烈的氢键作用.正是由于这种氢键作用使化合物1的结构由一维链状变为三维超分子结构.此外,有机的咪唑分子在该化合物的合成中同时发挥了配体和模板剂的作用.
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