Syntheses, structures and properties of a series of heterometallic-organic frameworks based on pyridinedicarboxylic acids
Syntheses, structures and properties of a series of heterometallic-organic frameworks based on pyridinedicarboxylic acids
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DOI：
10.1016/j.jssc.2020.121248
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发表时间：
2020-05
影响因子：
3.3
通讯作者：
Zhongxin Ma;Wei Li;Jiming Yu;Zhi-Zhuan Zhang;Xiao-Qin Zhu;Weiwei Xiong;Xiaoying Huang
中科院分区：
文献类型：
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作者：
Zhongxin Ma;Wei Li;Jiming Yu;Zhi-Zhuan Zhang;Xiao-Qin Zhu;Weiwei Xiong;Xiaoying Huang
六种新型的杂金属有机骨架（HMOFs），即[LaCu（2，5-pydc）2（H2O）4]Cl（1），[LaNi（2.5-pydc）2（H2O）4]Cl·4H2O（2），[LaCu2Cl3（4，4 ′-bpdc）2（H2O）3]·H2O（3），[CeCuCl2（5，5 ′-bpdc）（HCO 3）（H2O）]（4）和[MSr 2Cl（3，5-pydc）2（NO3）（H2O）]·3.5H2O [M = Ni（5），Co（6）]（2，5-pydc =吡啶-2，5-二羧酸，4，4 ′-bpdc = 2，2 ′-联吡啶-4，4 ′-二羧酸，5，5 ′-bpdc = 2，2 ′-联吡啶-5，5 ′-二羧酸，3，5-Pydc =吡啶-3，5-二甲酸），是基于碱土/稀土/过渡金属离子与吡啶二甲酸之间的配位作用而溶剂热合成的。通过单晶X射线衍射、粉末X射线衍射、元素分析和热重分析对这些HMOFs进行了表征。除了化合物3具有二维中性层外，所有这些HMOFs都具有三维框架。研究了4的磁性和1-4的荧光光谱。
Six novel heterometallic-organic frameworks (HMOFs), namely [LaCu(2,5-pydc)2(H2O)4]Cl (1), [LaNi(2.5-pydc)2(H2O)4]Cl·4H2O (2), [LaCu2Cl3(4,4′-bpdc)2(H2O)3]·H2O (3), [CeCuCl2(5,5′-bpdc)(HCO3)(H2O)] (4), and [MSr2Cl(3,5-pydc)2(NO3)(H2O)]·3.5H2O [M = Ni (5), Co (6)] (2,5-pydc = pyridine-2,5-dicarboxylic acid, 4,4′-bpdc = 2,2′-bipyridyl-4,4′-dicarboxylic acid, 5,5′-bpdc = 2,2′-bipyridyl-5,5′-dicarboxylic acid, 3,5-pydc = pyridine-3,5-dicarboxylic acid), have been solvothermally synthesized on the basis of the coordination between alkaline earth/rare earth/transition metal ions and pyridinedicarboxylic acids. These HMOFs were characterized by single crystal X-ray diffraction, powder X-ray diffraction, elemental analysis, and thermogravimetric analysis. All these HMOFs have three-dimensional frameworks except compound 3 featuring a two-dimensional neutral layer. Magnetic property of 4 and luminescent spectra of 1–4 were studied.