| 基于草酸和三氮唑的cdq拓扑四元与(4，4，8)-c拓扑五元Zn-MOFs的合成与结构 |
| Synthesis and structures of cdq-topological quaternary and (4,4,8)-c topological quinary Zn-MOFs with both oxalic acid and triazole ligands |
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| 摘要: 利用草酸锌与草酸(H2ox)和1，2，4-三氮唑(Htrz)在不同溶剂热条件下反应，成功合成了2例新的多元阴离子型金属有机骨架(MOFs)，即四元MOF (Me2NH2)2[Zn3(trz)2(ox)3]·2H2O (NJTU-Bai83)和五元MOF (Me2NH2)[Zn3(trz)3(ox)2]·H2O (NJTU-Bai84)。在NJTU-Bai83中，次级构筑单元(SBU)为[Zn2(ox)4(trz)2]，而在NJTU-Bai84中，SBUs为[Zn3(ox)2(trz)6]和[Zn (ox)2(trz)2]。次级构筑单元的变化导致了2D超分子层(SBL)由NJTU-Bai83中A-和B-SBL转变为NJTU-Bai84中的另一A-SBL，同时支柱由四面体[Zn (ox)2(trz)2]SBU转变为不规则四面体[Zn (ox)2(trz)2]和平面型[Zn (ox)2(trz)2]SBUs。有趣的是，NJTU-Bai83的cdq拓扑结构也转变为NJTU-Bai84的(4，4，8)-c新拓扑结构。2例MOFs均以粉末X射线衍射、热重和元素分析等进行了表征。 |
| 关键词: 控制合成 多元金属有机骨架 柱层型结构 |
| 基金项目: 国家自然科学基金(No.22271150)资助。 |
| Abstract: Different solvothermal reactions of ZnC2O4 with oxalic acid (H2ox) and 1,2,4-triazole (Htrz) successfully gave a new quaternary (NJTU-Bai83, NJTU-Bai=Nanjing Tech University Bai's group) and a new quinary (NJTU- Bai84) anionic metal-organic frameworks (MOFs), where NJTU-Bai83=(Me2NH2)2[Zn3(trz)2(ox)3]·2H2O and NJTU-Bai84=(Me2NH2)[Zn3(trz)3(ox)2]·H2O, respectively. With the [Zn2(ox)4(trz)2] secondary building unit (SBU) in NJTU- Bai83 replaced by the [Zn3(ox)2(trz)6] and planar [Zn(ox)2(trz)2] ones in NJTU-Bai84, 2D supramolecular building layers (SBLs) are changed from the A-layer and B-layer to another A-layer, while pillars are transformed from the tetrahedral [Zn(ox)2(trz)2] SBU to the irregular tetrahedral [Zn(ox)2(trz)2] and planar [Zn(ox)2(trz)2] SBUs. Thus, cdq-topological quaternary NJTU-Bai83 is tuned to (4,4,8)-c new topological quinary NJTU-Bai84. Two MOFs were well characterized by powder X-ray diffraction, thermogravimetric analysis, elemental analysis, etc. |
| Keywords: controlled synthesis multivariant metal-organic frameworks pillar-layer typed structures |
| 投稿时间：2024-05-15 修订日期：2024-08-21 |
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| 梁婧,王倩,白俊峰.基于草酸和三氮唑的cdq拓扑四元与(4，4，8)-c拓扑五元Zn-MOFs的合成与结构[J].无机化学学报,2024,40(11):2186-2192. |
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