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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Rational synthesis and dimensionality tuning of MOFs from preorganized heterometallic molecular complexes
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Rational synthesis and dimensionality tuning of MOFs from preorganized heterometallic molecular complexes

机译：重选杂核分子复合物的合成合成及二维调整MOF

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摘要

Rational synthesis of a series of new heterometallic MOFs was carried out by the judicious choice of the corresponding pivalate complexes [Li2M2(piv)(6)(py)(2)] (M = Zn2+, Co2+, piv(-) = pivalate anion and py = pyridine) as a source of secondary building units, {LiM(O2CR)(3)} and an organic tricarboxylate linker as a node defining the dimensionality of the framework by the orientation of the carboxylic group in or out of the central aromatic ring plane. Thus the trimesate (btc(3-)) linker results in 3D srs topology frameworks with intersecting systems or isolated channels, and 1,3,5-benzenetribenzoate (btb(3-)) results in layered hcb isostructural compounds additionally stabilized with H-pi interactions between the layers. The layered compounds demonstrate a permanent porosity with a BET surface area of up to 688 m(2)center dot g(-1) with the possibility of selective gas adsorption (CO2 over N-2 and CH4). Zn-Based coordination polymers show notable color changes and drastic (up to 30 times) quenching of luminescence upon inclusion of different nitroaromatics.
机译：了一系列新的异金属的MOF理性合成通过相应的三甲基乙酸盐络合物的明智选择进​​行[Li2M2（PIV）（6）（吡啶）（2）]（M = Zn2 +的，CO 2 +，PIV（ - ）=新戊酸盐阴离子和PY =吡啶）作为第二结构单元的来源，{的LiM（O 2 CR）（3）}和有机三羧酸连接基如羧基的或缩小的中心芳族的定向限定所述框架的维数的节点环平面。因此，均苯三（BTC（3-））接头导致3D SRS拓扑框架具有交叉系统或分离的信道，和1,3,5- benzenetribenzoate（BTB（3-））导致层状HCB同构的化合物另外与H-稳定层与层之间π相互作用。层状化合物显示与选择性气体吸附（CO2在N-2和CH 4）的可能性高达688米（2）中心的点克（-1）的BET表面积的永久孔隙率。基于锌的配位聚合物显示显着的颜色变化和急剧的（高达30倍）在包含不同的硝基芳族化合物的发光的猝灭。

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