Kim Hyunyong, Cohen Seth M
Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States.
Inorg Chem. 2024 Jan 29;63(4):1853-1857. doi: 10.1021/acs.inorgchem.3c03452. Epub 2024 Jan 12.
Metal-organic frameworks (MOFs) prepared from oligomeric or polymeric organic ligands have been studied and are termed oligoMOFs and polyMOFs, respectively. Herein, several oligoMOFs are described that have been prepared from branched oligomers with dendritic or star-like architectures. Branched oligomeric ligands with four () or eight () 1,4-benzene dicarboxylic acid (Hbdc) groups were prepared and used to synthesize isoreticular-type Zn(II)-based MOFs (IRMOF). A branched tetramer () produced an oligoIRMOF-1 with improved ambient stability compared with IRMOF-1 or previously described oligoMOFs. To understand the effect of the ligand architecture, oligoIRMOFs were also prepared from a linear tetramer (). For a branched octamer (), it was found that the addition of an organic base was required to produce crystalline oligoIRMOFs. Multivariate MOFs (MTV-MOFs) could also be readily prepared with a combination of an octamer () and Hbdc.
由低聚或聚合有机配体制备的金属有机框架（MOF）已得到研究，分别被称为低聚MOF和聚MOF。本文描述了几种由具有树枝状或星状结构的支化低聚物制备的低聚MOF。制备了具有四个（）或八个（）1,4-苯二甲酸（Hbdc）基团的支化低聚配体，并用于合成同网状型基于Zn（II）的MOF（IRMOF）。与IRMOF-1或先前描述的低聚MOF相比，一种支化四聚体（）产生了具有改善的环境稳定性的低聚IRMOF-1。为了了解配体结构的影响，还由线性四聚体（）制备了低聚IRMOF。对于支化八聚体（），发现需要添加有机碱才能产生结晶低聚MOF。多变量MOF（MTV-MOF）也可以很容易地由八聚体（）和Hbdc组合制备。
