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首页> 外文期刊>Crystal growth & design >Amine-templated anionic metal-organic frameworks with the 4,4′-(hexafluoroisopropylidene) bis(benzoic acid) ligand
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Amine-templated anionic metal-organic frameworks with the 4,4′-(hexafluoroisopropylidene) bis(benzoic acid) ligand

机译：具有4,4'-（六氟异亚丙基）双（苯甲酸）配体的胺模板阴离子金属有机骨架

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摘要

Three new compounds with anionic metal-organic frameworks [M _3(hfbba)_4]~(2-), M = Mn~(2+) or Co ~(2+), hfbba = 4,4′-(hexafluoroisopropylidene)bis(benzoic acid), have been synthesized by solvothermal techniques in the presence of different amines. Their structures were determined from single crystal X-ray data. All three structures are based on linear trimers of metal oxide polyhedra. (C _6H_(11)NH_3)_2Mn_3(hfbba) 4, 1, has a three-dimensional (3D) structure with large cages that are filled by pairs of cyclohexylammonium cations. ((C_4H _(11))_2NH_2)_2Co_3(hfbba) _4, 2, has a complex layered structure with intralayer lateral channels. One half of the dibutylammonium cations are located inside the channels and are orientationally disordered, while the other half of the dibutylammonium cations are located in the interlayer spaces and are ordered. (H_2tdpip)Co_3(hfbba)_4, 3, tdpip = 4,4′-trimethylenedipiperidine, also has a layered structure with the H_2tdpip cations located between the layers. The magnetic properties of compounds 1, 2, and 3 were determined from 10 to 300 K.
机译：三种具有阴离子金属-有机骨架的新化合物[M _3（hfbba）_4]〜（2-），M = Mn〜（2+）或Co〜（2 +），hfbba = 4,4'-（六氟异亚丙基）bis （苯甲酸），是通过溶剂热技术在不同胺存在下合成的。由单晶X射线数据确定它们的结构。所有这三种结构均基于金属氧化物多面体的线性三聚体。 （C _6H_（11）NH_3）_2Mn_3（hfbba）4、1具有带有大笼子的三维（3D）结构，该笼子由成对的环己基铵阳离子填充。 （（C_4H _（11））_ 2NH_2）_2Co_3（hfbba）_4、2具有带层内横向通道的复杂分层结构。二丁基铵阳离子的一半位于通道内，且方向无序，而另一半则位于中间层空间中且有序。 （H_2tdpip）Co_3（hfbba）_4，3，tdpip = 4,4'-三亚甲基二哌啶，也具有H_2tdpip阳离子位于两层之间的层状结构。化合物1、2和3的磁性从10到300 K.

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