A Series of Cu-II-Ln(III) Metal-Organic Frameworks Based on 2,2'-Bipyridine-3,3'-dicarboxylic Acid: Syntheses, Structures, and Magnetic Properties

Liu Ke; Zhou Jing-Min; Li Hui-Min; Xu Na; Cheng Peng

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A Series of Cu-II-Ln(III) Metal-Organic Frameworks Based on 2,2'-Bipyridine-3,3'-dicarboxylic Acid: Syntheses, Structures, and Magnetic Properties

机译：基于2,2'-联吡啶-3,3'-二羧酸的一系列Cu-II-Ln（III）金属有机骨架：合成，结构和磁性

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A series of Cu(II)Ln(III) heterometallic metalorganic frameworks (HMOFs), displaying three types of structures with the formulas of {[Ln(2)Cu(BDPC)(4)(H2O)(6)]center dot 9H(2)O}(n) (Ln = La, 1; Pr, 2; Nd, 3; BPDC2 = 2,2'-bipyridine-3,3'-dicarboxylate), {[Ln(2)Cu(2)(BPDC)(5)(H2O)(6)]center dot 9H(2)O}n (Ln = Pr, 4; Nd, 5; Sm, 6; Eu, 7; Gd, 8; Tb, 9) and [DyCu3(BPDC)(4)(NO3)(H2O)(6)](n) (10), have been successfully synthesized and well characterized. Single crystals available for X-ray diffraction measurements were carried out for MOFs 3, 7, 9, and 10. Powder X-ray diffraction and Fourier transform infrared analysis demonstrate the isomorphism for MOFs 13, as well as MOFs 49. The BPDC2 ligand herein exhibits seven different coordination modes to link metal centers for the construction of different three-dimensional structures. The structures of the three types of Cu-II-Ln(III) HMOFs can be described topologically with the Schlafli symbol {3 center dot 6 (2)}{3 (2) center dot 6 (6) center dot 7 (3 center dot)8 (3)center dot 9}{6 (2) center dot 7}, {4 center dot 6 (2)}(2){4 (2) center dot 6 (4) center dot 8 (6)center dot 10 (3)}{6 center dot 8 (2)}(2), and {4 center dot 8 center dot 9}(2){6 center dot 8 center dot 9}(2){6 center dot 8 (2)center dot 9 (3)}{8 (2)center dot 9}(2), of which the latter two are new topologies. The static magnetic properties of the 10 HMOFs and dynamic magnetic properties of 9-Tb2Cu2 and 10-DyCu3 have been studied.

机译：一系列Cu（II）Ln（III）杂金属金属有机骨架（HMOF），显示三种类型的结构，分子式为{[Ln（2）Cu（BDPC）（4）（H2O）（6）]中心点9H （2）O}（n）（Ln = La，1; Pr，2; Nd，3; BPDC2 = 2,2'-联吡啶-3,3'-二羧酸盐），{[Ln（2）Cu（2）（BPDC）（5）（H2O）（6）]中心点9H（2）O} n（Ln = Pr，4; Nd，5; Sm，6; Eu，7; Gd，8; Tb，9）和[DyCu3（BPDC）（4）（NO3）（H2O）（6）]（n）（10）已成功合成并很好地表征。对MOF 3、7、9和10进行了可用于X射线衍射测量的单晶。粉末X射线衍射和傅立叶变换红外分析证明了MOF 13和MOF 49的同构性。本文的BPDC2配体展示了七种不同的协调模式来链接金属中心，以构建不同的三维结构。可以使用Schlafli符号{3中心点6（2）} {3（2）中心点6（6）中心点7（3中心）在拓扑上描述三种类型的Cu-II-Ln（III）HMOF的结构点）8（3）中心点9} {6（2）中心点7}，{4中心点6（2）}（2）{4（2）中心点6（4）中心点8（6）中心点10（3）} {6中心点8（2）}（2）和{4中心点8中心点9}（2）{6中心点8中心点9}（2）{6中心点8（ 2）中心点9（3）} {8（2）中心点9}（2），其中后两个是新拓扑。研究了10种HMOF的静态磁性能以及9-Tb2Cu2和10-DyCu3的动态磁性能。

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《Crystal growth & design》 |2014年第12期|共12页
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Liu Ke; Zhou Jing-Min; Li Hui-Min; Xu Na; Cheng Peng;
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A Series of Cu-II-Ln(III) Metal-Organic Frameworks Based on 2,2'-Bipyridine-3,3'-dicarboxylic Acid: Syntheses, Structures, and Magnetic Properties

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