Design and Construction of a Chiral Cd(II)-MOF from Achiral Precursors: Synthesis, Crystal Structure and Catalytic Activity toward C–C and C–N Bond Forming Reactions
作者:Vijay Gupta、Sanjay K. Mandal
DOI:10.1021/acs.inorgchem.8b03307
日期:2019.3.4
dicarboxylic acid (H2L) and a conformationally flexible bidentate linker (bpp), a thermally stable chiral metal organic framework [Cd(bpp)(L)(H2O)]·DMF}n (1), where H2L = 4,4′-(dimethylsilanediyl)bis-benzoic acid, bpp = 1,3-bis(4-pyridyl)propane and DMF = N,N-dimethylformamide, has been solvothermally synthesized and crystallographically characterized. It consists of 1D helical chains linked at the cadmium
使用非手性组分,V形二羧酸(H 2 L)和构象柔和的双齿连接体(bpp),热稳定的手性金属有机骨架[Cd(bpp)(L)(H 2 O)]·DMF} n(1)已被溶剂热合成,其中H 2 L = 4,4'-(二甲基硅烷二基)双苯甲酸,bpp = 1,3-双(4-吡啶基)丙烷和DMF = N,N-二甲基甲酰胺。晶体学表征。它由在镉中心相连的一维螺旋链组成,形成了一个整体的二维框架。其微孔性质通过气体吸收测量得到证实。热激活时1一维开放通道中存在的客体DMF分子和配位的H 2 O分子均被除去,其活性金属位点显示出路易斯酸特性,是C–C(Knoevenagel缩合反应)和C–N的出色的多相催化剂(斯特雷克)键形成反应。