Herein, by well-designing one bifunctional organic ligand as distinct bridging nodes, one new three-dimensional (3D) pillar-layer MOF, namely as Co₃(IDCA)₄ (IDCA = 1-H-indazole-5-carboxyle acid), has been synthesized and structurally characterized. The 3D Co₃(IDCA)₄ framework is composed of linear metal trimer and parazole-carboxyl group with one-dimensional (1D) tetragonal channel. Despite of absence of open metal sites as molecule binding positions, this 3D framework displays promising uptake capacity and separation ability for various hydrocarbon gas molecules.

中文翻译：

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基于单一双功能有机配体的三维柱状层金属有机骨架

在本文中，通过精心设计一种双功能有机配体作为不同的桥接节点，可以得到一种新的三维（3D）支柱层MOF，即Co ₃（IDCA）₄（IDCA = 1-H-吲唑-5-羧酸） ，已经合成并在结构上表征。3D Co ₃（IDCA）₄框架由线性金属三聚体和具有一维（1D）四方通道的对唑-羧基组成。尽管没有开放的金属位点作为分子结合位置，但此3D框架对于各种烃类气体分子仍显示出令人满意的吸收能力和分离能力。