Two-dimensional flexible Ni(II)-based porous coordination polymer showing single-crystal to single-crystal transformation, selective gas adsorption and catalytic properties
作者:Rashmi A. Agarwal、Soumya Mukherjee
DOI:10.1016/j.poly.2015.12.008
日期:2016.2
A novel two dimensional (2D) porous coordination polymer [Ni3(TBIB)2(BTC)2(H2O)6]·5C2H5OH·9H2O}n (1) [TBIB = 1,3,5-tri(1H-benzo[d]imidazol-1-yl)benzene, H3BTC = 1,3,5-benzenetricarboxylic acid] has been synthesized solvothermally. In 1, layers are stacked in ABAB⋯ fashion by virtue of strong intermolecular hydrogen bonding interactions, to generate an overall 3D supramolecular framework consisting
新型的二维(2D)多孔配位聚合物[Ni 3(TBIB)2(BTC)2(H 2 O)6 ]·5C 2 H 5 OH·9H 2 O} n(1)[TBIB = 1,3溶剂热合成了,5-三(1H-苯并[d]咪唑-1-基)苯,H 3 BTC = 1,3,5-苯三羧酸]。在1通过强烈的分子间氢键相互作用,各层以ABAB⋯的方式堆叠,以生成整体3D超分子框架,该框架由内部容纳溶剂分子的孤立袋组成。在室温下将络合物1在DCM中浸泡7天后,将这些晶格组成的溶剂分子替换为二氯甲烷(DCM),得到[Ni 3(TBIB)2(BTC)2(H 2 O)6 ]·6CH 2 Cl 2 ·6H 2 O} n(2)。化合物2中的层排列略有变化其中完全没有小口袋。已经使用单晶X射线衍射,IR光谱,热重分析和元素分析对这两种化合物1和2进行了表征。重要的是,配合物1在低温和低压下显示出对CO 2气体的选择性吸附,并且在高温下