College of Chemistry and Life Sciences , Zhejiang Normal University , Jinhua 321004 , P. R. China.
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry , Jilin University , Changchun 130012 , P. R. China.
ACS Appl Mater Interfaces. 2018 Sep 19;10(37):31233-31239. doi: 10.1021/acsami.8b06340. Epub 2018 Sep 7.
Despite many advances in the design and assembly of mesoporous metal-organic frameworks (meso-MOFs), it is still a challenge to obtain the desired structure. Here, we utilized an effective cluster cooperative assembly strategy by introducing SO ions as chelating binding sites to construct a novel mesoporous MOF, [Cu(SO)(TBA)(OH)( N,N-dimethylacetamide (DMA))]·12DMA·12CHOH [JLU-MOF51, HTBA = 4-(1 H-tetrazol-5-yl)-benzoic acid]. Remarkably, the cooperative assembly of the infrequent hexanuclear [CuSO(OH)] cluster and the classical paddlewheel [Cu(CO)] via linear hetero-N, O donor ligand results in an open three-dimensional framework, which possesses one-dimensional nanometer tube channels with the diameter of 24 and 28 Å. Fascinatingly, JLU-MOF51 displays an exceptionally large Langmuir surface area (5443 m g) and exhibits a high capacity for selective adsorption of CH (CH: 348 cm g at 273 K; CH/CH = 220 at 298 K). In addition, JLU-MOF51 can selectively adsorb fluorescein disodium salt dye among numerous organic dyes. An extremely high surface area and unique structural characteristics make JLU-MOF51 a promising meso-MOF material for the adsorption and separation of hydrocarbon gases and organic dyes. Moreover, this strategy will provide an effective means for constructing meso-MOFs via one-step synthesis.
尽管在介孔金属有机骨架（meso-MOFs）的设计和组装方面已经取得了许多进展，但获得所需结构仍然是一个挑战。在这里，我们利用有效的团簇协同组装策略，通过引入 SO42-作为螯合结合位点，构建了一种新型介孔 MOF，[Cu(SO)(TBA)(OH)(N,N-二甲基乙酰胺（DMA）)]·12DMA·12CHOH [JLU-MOF51，HTBA = 4-(1 H-四唑-5-基）-苯甲酸]。值得注意的是，通过线性杂原子 N、O 供体配体，将罕见的六核[CuSO(OH)]团簇和经典的桨轮[Cu(CO)]协同组装，形成了一个开放的三维骨架，具有一维纳米管状通道，直径分别为 24 和 28 Å。有趣的是，JLU-MOF51 具有非常大的 Langmuir 比表面积（5443 m2 g-1），对 CH（CH：273 K 时为 348 cm3 g-1；298 K 时为 CH/CH = 220）具有高容量的选择性吸附能力。此外，JLU-MOF51 可以在众多有机染料中选择性地吸附荧光素二钠盐染料。极高的比表面积和独特的结构特征使 JLU-MOF51 成为一种很有前途的介孔 MOF 材料，可用于烃类气体和有机染料的吸附和分离。此外，该策略将为通过一步合成构建介孔 MOF 提供一种有效的手段。
