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基于组装合成的思想,在水热条件下合成了一种水合铵硼酸盐。将孤立的硼氧聚阴离子通过聚合脱水自组装形成一维链状结构,链与链之间通过氢键作用形成硼酸盐层,铵离子和水分子填充在阴离子的骨架间隙中,并通过氢键将硼酸盐层连接起来。使用红外光谱、元素分析、热重-差热分析及X射线单晶衍射分析等手段,对该化合物结构进行了表征。单晶结构分析结果与假想结果相吻合,该化合物系孤立的五硼氧聚阴离子通过缩聚脱水形成一维无限链状结构,链与链之间通过氢键连接在一起,铵离子和水分子填充在骨架间隙当中。该化合物属三斜晶系,P-1空间群,晶胞参数a=0.76413(15)nm,b=0.92529(19)nm,c=1.1949(2)nm,α=99.49(3)°,β=105.87(3)°,γ=91.57(3)°。
Based on the idea of assembly synthesis, a hydrated ammonium borate was synthesized under hydrothermal conditions. Boron oxide polyanion isolated by polymerization dehydration self-assembled to form a one-dimensional chain structure, chains and chains formed by hydrogen bonding between the borate layer, ammonium ions and water molecules filled in the anionic framework gap, and through the hydrogen Key to connect the borate layer. The structure of the compound was characterized by IR, elemental analysis, TG-DTA and X-ray single crystal diffraction analysis. The single crystal structure analysis results are in good agreement with the hypothetical results. The isolated pentaboride polyanions are dehydrated by polycondensation to form a one-dimensional infinite chain structure, and the chains and chains are connected together by hydrogen bonds. The ammonium ions and the water molecules are filled Among the skeleton gap. The compound belongs to triclinic system with P-1 space group. The unit cell parameters a = 0.76413 (15) nm, b = 0.92529 (19) nm, c = 1.1949 (2) nm, = 105.87 (3) °, γ = 91.57 (3) °.