锆簇基纳米分子胶囊的合成、晶体结构和荧光性质 |
Synthesis, Crystal Structures and Fluorescence Properties of Two Nanosized Zr-Based Molecular Capsules |
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摘要: 选取4,4'-联苯二甲酸(4,4'-H2BPDC)和2,6-萘二甲酸(2,6-H2NDC)分别与二氯二茂锆(Cp2ZrCl2)反应制备了2例结构新颖的锆基纳米分子胶囊[Cp3Zr3(μ3-O)(μ2-OH)3]2(BPDC)3Cl2·H2O(Zr-MC-1)和[Cp3Zr3(μ3-O)(μ2-OH)3]2(NDC)3Cl2·3H2O(Zr-MC-2)。这2个分子胶囊均由3个线性羧基配体桥联2个三核茂锆建筑单元构成。利用单晶X射线衍射、粉末X射线衍射、元素分析、红外光谱、热重分析和氮气吸附-脱附等手段对化合物进行了表征。此外,荧光光谱分析表明Zr-MC-1和Zr-MC-2分别为深蓝光和蓝光发射材料,其最大发射波长分别为404和456 nm。 |
关键词: 分子胶囊 晶体结构 羧酸配体 荧光光谱 |
基金项目: 国家自然科学基金(No.21801038,21471027,21671034),吉林省教育厅(No.JJKH20190271KJ),中国博士后基金资助项目(No.2018M630312,2019T120227)和中央高校基本科研专项资金(No.2412018QD003)资助 |
Abstract: Two nanosized zirconium-based molecular capsules (Zr-MCs), namely[Cp3Zr3(μ3-O)(μ2-OH)3]2(BPDC)3Cl2 ·H2O (Zr-MC-1) and[Cp3Zr3(μ3-O)(μ2-OH)3]2(NDC)3Cl2·3H2O (Zr-MC-2), have been synthesized by reacting zirconocenedichloride (Cp2ZrCl2) with 4,4'-biphenyldicarboxylic acid (4,4'-H2BPDC) and 2,6-naphthalenedicar-boxylic acid (2,6-H2NDC), respectively, which are constructed by two trinuclear zirconocene building blocks and three linear carboxylate ligands. They were characterized by single-crystal X-ray diffraction, powder X-ray diffraction, elemental analysis, IR spectroscopy, thermogravimetric analysis and N2 adsorption-desorption tests. In addition, the fluorescence spectra indicate that Zr-MC-1 and Zr-MC-2 are deep-blue and blue emitting materials with emission peaks at 404 and 456 nm, respectively. |
Keywords: molecular capsule crystal structure carboxylate ligand fluorescence spectroscopy |
投稿时间:2019-07-29 修订日期:2019-09-09 |
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陶艳丽,陈维超,王新龙,苏忠民.锆簇基纳米分子胶囊的合成、晶体结构和荧光性质[J].无机化学学报,2019,35(11):2108-2116. |
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