Series of novel 3D heterometallic frameworks based on the Co(II) coordination chains and Ln(III) coordination layers

Liao S.-Y.; Gu W.; Yang L.-Y.; Li T.-H.; Tian J.-L.; Wang L.; Zhang M.; Liu X.

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Series of novel 3D heterometallic frameworks based on the Co(II) coordination chains and Ln(III) coordination layers

机译：基于Co（II）配位链和Ln（III）配位层的一系列新颖3D杂金属框架

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A family of novel Co(II)-Ln(III) heterometallic coordination polymers [Ln _2Co(tia) _4(H _2O) _4] a? (tia ~(2-) = 5-(1H-1,2,3-triazol-1-yl) isophthalate, Ln = La 1, Ce 2, Pr 3, Nd 4, Sm 5, Eu 6, Gd 7, Tb 8, Dy 9) have been synthesized through in situ ligand transformation reactions, in which 5-(4-carboxy-1H-1,2,3-triazol-1-yl) isophthalic acid (H _3ctia) undergoes decarboxylation and double deprotonation to tia ~(2-). X-ray structural analysis reveals that compounds 1-9 are isomorphous. The heterometallic Ln ~(3+) and Co ~(2+) ions are connected by the dianionic linker (tia ~(2-)) to form unique 3D heterometallic frameworks. Moreover, we have systematically investigated the magnetic behaviors and fluorescent properties of these compounds. The out-of-phase ac signals observed for 9 suggest slow magnetization relaxation, which is unusual in 3D coordination polymers, especially in 3D heterometallic frameworks. In NIR regions, complexes 3, 4, 5, and 9 show the characteristic luminescence of the corresponding Ln(III ions.

机译：一族新型Co（II）-Ln（III）杂金属配位聚合物[Ln _2Co（tia）_4（H _2O）_4] a？（tia〜（2-）= 5-（1H-1,2,3-三唑-1-基）间苯二甲酸酯，Ln = La 1，Ce 2，Pr 3，Nd 4，Sm 5，Eu 6，Gd 7，通过原位配体转化反应合成了Tb 8，Dy 9），其中5-（4-羧基-1H-1,2,3-三唑-1-基）间苯二甲酸（H _3ctia）经历了脱羧和双去质子化至tia〜（2-）。 X射线结构分析显示化合物1-9是同构的。杂金属Ln〜（3+）和Co〜（2+）离子通过双阴离子连接体（tia〜（2-））连接，形成独特的3D杂金属骨架。此外，我们已经系统地研究了这些化合物的磁行为和荧光性质。对9观察到的异相ac信号表明磁化松弛缓慢，这在3D配位聚合物中，尤其是在3D杂金属骨架中是不常见的。在NIR区域中，配合物3、4、5和9显示相应Ln（III离子）的特征发光。

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《Crystal growth & design》 |2012年第8期|共10页
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Liao S.-Y.; Gu W.; Yang L.-Y.; Li T.-H.; Tian J.-L.; Wang L.; Zhang M.; Liu X.;
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1. Series of novel 3D heterometallic frameworks based on the Co(II) coordination chains and Ln(III) coordination layers [J] . Liao S.-Y., Gu W., Yang L.-Y., Crystal growth & design . 2012,第8期

机译：基于Co（II）配位链和Ln（III）配位层的一系列新颖3D杂金属框架
2. Heterotrimetallic Coordination Polymers: {Cu(II)Ln(III)Fe(III)} Chains and {Ni(II)Ln(III)Fe(III)} Layers: Synthesis, Crystal Structures, and Magnetic Properties [J] . Alexandru Maria-Gabriela, Visinescu Diana, Andruh Marius, Chemistry: A European journal . 2015,第14期

机译：异三金属配位聚合物：{Cu（II）Ln（III）Fe（III）}链和{Ni（II）Ln（III）Fe（III）}层：合成，晶体结构和磁性
3. Unprecedented Na-I-Cu-II-Ln(III) heterometallic coordination polymers based on 3,5-pyrazoledicarboxylate with both infinite cationic and anionic chains [J] . Wang Y, Song Y, Pan ZR, Dalton transactions: An international journal of inorganic chemistry . 2008,第41期

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4. Synthesis and Crystal Structure of a Novel 3D Sm(III) Coordination Polymer with Mixed Ligands [C] . Shu-ju Wang, Yan-wen Tian, Li-xin You, International Conference on Advanced Engineering Materials and Technology . 2013

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7. Two-dimensional 3d-4f heterometallic coordination polymers: Syntheses, crystal structures, and magnetic properties of six new Co(II)-Ln(III) compounds [O] . Díaz-Gallifa Pau, Fabelo Óscar, Pasán Jorge, 2015

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Series of novel 3D heterometallic frameworks based on the Co(II) coordination chains and Ln(III) coordination layers

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