Open-Framework Beryllium Hydrogen Phosphates with (3,4)-Connected Networks
Open-Framework Beryllium Hydrogen Phosphates with (3,4)-Connected Networks
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DOI：
10.1002/ejic.201400113
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发表时间：
2014-04
影响因子：
2.3
通讯作者：
Kangcai Wang;Daibing Luo;Dingguo Xu;Lin Liu;Zhien Lin
中科院分区：
文献类型：
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作者：
Kangcai Wang;Daibing Luo;Dingguo Xu;Lin Liu;Zhien Lin
在溶剂热条件下合成了4种磷酸氢铍：Be 2（Hea）（PO 4）（HPO 4）（1），Him·Be 3（OH）（HPO 4）3（2a），Hpy·Be 3（OH）（HPO 4）3（2b）和Hma·Be1.5（HPO 4）2·0.5H2O（3），其中ea =乙醇胺，im =咪唑，py =吡啶，ma =甲胺。所有化合物都具有开放的骨架结构和（3，4）-连接的网络。化合物1具有中性无机-有机混合框架，具有中断的沸石GIS拓扑结构。胺分子作为铍原子的电荷平衡剂和配位剂的双重作用值得注意。化合物2a和2b是同构的，并且它们具有具有椭圆形12环通道的AFI相关骨架。化合物3具有4.82层共角四环柱撑的三维结构。它代表了具有16环通道的开放骨架磷酸氢铍的第一个例子。
Four beryllium hydrogen phosphates, Be2(Hea)(PO4)(HPO4) (1), Him·Be3(OH)(HPO4)3 (2a), Hpy·Be3(OH)(HPO4)3 (2b), and Hma·Be1.5(HPO4)2·0.5H2O (3) in which ea = ethanolamine, im = imidazole, py = pyridine, and ma = methylamine, were synthesized under solvothermal conditions. All compounds have open-framework structures with (3,4)-connected networks. Compound 1 features a neutral inorganic–organic hybrid framework with an interrupted zeolitic GIS topology. The dual role of the amine molecules as charge-balancing agents and coordinating agents to the beryllium atoms is noteworthy. Compounds 2a and 2b are isostructural, and they have an AFI-related framework with elliptical 12-ring channels. Compound 3 has a 3D structure with 4.82 layers pillared by corner-sharing four-ring chains. It represents the first example of an open-framework beryllium hydrogen phosphate with 16-ring channels.