A new 3D Zn(II) MOF based on 2-(hydroxymethyl)-1H-imidazole-4,5-dicarboxylic acid (H4hmIDC), formulated as [Zn3(HhmIDC)2(H2O)2]·2H2O}n, has been successfully prepared under hydrothermal conditions and structurally characterized by single-crystal X-ray diffraction, elemental analysis and infrared spectroscopy, as well as power X-ray diffraction. It is worth noting that the unique HhmIDC3− ligand in the title compound adopts an unusual coordination mode, namely µ4-kN,O: kN′,O′: kO″,O‴: kO′′′′ to link the Zn(II) ions into an interesting 3D coordination framework. Such a 3D network can be further simplified as a binodal 4-connected mog (moganite) topology with the Schläfli symbol of (4·64·8)2(42·62·82). Moreover, the title Zn(II) MOF shows a relatively high thermal stability up to 340 °C, and exhibits an intense blue emission centered at 450 nm upon excitation at 370 nm. A new 3D microporous Zn(II) MOF with an uncommon binodal 4-connected mog topology has been constructed from 2-(hydroxymethyl)-1H-imidazole-4,5-dicarboxylic acid (H4hmIDC). Such a Zn(II) MOF displays a relatively high thermal stability and exhibits very strong blue photoluminescence with a maximum emission band at 450 nm when excited at 370 nm.
在
水热条件下成功制备了一种基于 2-(羟甲基)-1H-
咪唑-4,5-二羧酸(H4hmIDC)的新型三维
锌(II)MOF,命名为[Zn3(HhmIDC)2(
H2O)2]-2 }n,并通过单晶 X 射线衍射、元素分析和红外光谱以及功率 X 射线衍射对其结构进行了表征。值得注意的是,标题化合物中独特的 HhmIDC3-
配体采用了一种不同寻常的配位模式,即 µ4-kN,O: kN′,O′: kO″,O‴: kO′′′′ 将 Zn(II) 离子连接成一个有趣的三维配位框架。这样的三维网络可以进一步简化为一个双极 4 连接的 MOg(莫甘石)拓扑结构,其 Schläfli 符号为 (4-64-8)2(42-62-82)。此外,标题 Zn(II) MOF 在 340 ℃ 以下具有相对较高的热稳定性,在 370 nm 处激发时会发出以 450 nm 为中心的强烈蓝光。以 2-(羟甲基)-1H-
咪唑-4,5-二羧酸(H4hmIDC)为原料,构建了一种新型三维微孔 Zn(II)MOF,其具有不常见的二极 4 连接 MOg 拓扑结构。这种
锌(II)MOF 具有相对较高的热稳定性,在 370 nm 处激发时可发出 450 nm 处最大发射带的强烈蓝色光致发光。