A Sodalite-Type Porous Metal−Organic Framework with Polyoxometalate Templates: Adsorption and Decomposition of Dimethyl Methylphosphonate

A sodalite-type porous metal−organic framework with polyoxometalate templates, H3[(Cu4Cl)3(BTC)8]2[PW12O40]·(C4H12N)6·3H2O (NENU-11; BTC = 1,3,5-benzenetricarboxylate), was obtained by a hydrothermal reaction. As a reasonable candidate for eliminating nerve gas, NENU-11 displays good adsorption behavior for dimethyl methylphosphonate (15.5 molecules per formula unit). In virtue of the catalytic activity of polyoxometalate guests, this nerve gas mimic could be facilely decomposed by a hydrolysis reaction.

本研究通过水热反应合成了一种以多金属氧酸盐（polyoxometalate）为模板的方钠石型多孔金属有机框架，其化学式为H3[(Cu4Cl)3(BTC)8]2[PW12O40]·(C4H12N)6·3H2O（命名为NENU-11；其中BTC代表1,3,5-苯三羧酸根）。作为一款性能优异的神经性毒剂消除候选材料，NENU-11对甲基膦酸二甲酯展现出良好的吸附性能，吸附量可达每化学式单元15.5个分子。凭借多金属氧酸盐客体的催化活性，该神经性毒剂模拟剂可通过水解反应被高效简便地降解。