Hailou Li, Yamin Cheng, Jie Luo, P. Ma, Junwei Zhao, Lijuan Chen
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引用次数: 3
摘要
采用水热法合成了两种有机-无机复合钒酸盐Na2(Hen)4[B18V12O60]·16H2O (1) (en =乙二胺)和(H2en)6[B18V12O60]2·2tepa·11H2O (2) (tepa =四乙二胺)，并用元素分析、电感耦合等离子体原子发射光谱(ICP-AES)分析、红外光谱和x射线晶体学对其进行了表征。单晶结构分析表明，1表现为二维多氧钒硼酸盐片结构，具有由[B18V12O60]6 -单元通过Na+桥建立的四连接拓扑结构，而2的分子单元由两个离散的[B18V12O60]6 -簇，6个双质子化[H2en]2+阳离子，两个tepa分子和11个晶格水分子组成。
Syntheses and Structures of Two Organic–Inorganic Composite Vanadoborates Na2(Hen)4[B18V12O60]·16H2O and (H2en)6[B18V12O60]2·2tepa·11H2O
Two organic–inorganic composite vanadoborates Na2(Hen)4[B18V12O60]·16H2O (1) (en = ethylenediamine) and (H2en)6[B18V12O60]2·2tepa·11H2O (2) (tepa = tetraethylenepentamine) have been hydrothermally synthesized and characterized by elemental analyses, inductively coupled plasma atomic emission spectrometry (ICP-AES) analyses, IR spectra, and X-ray crystallography. Single-crystal structural analyses show that 1 exhibits a 2-D polyoxovanadium borate sheet architecture with a four-connected topology established by [B18V12O60]6− units via Na+ bridges whereas the molecular unit of 2 consists of two discrete [B18V12O60]6− clusters, six diprotonated [H2en]2+ cations, two tepa molecules, and 11 lattice water molecules.
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