A Family of Capsule-Based Coordination Polymers Constructed from a New Tetrakis(1,2,4-triazol-ylmethyl)resorcin[4]arene Cavitand and Varied Dicarboxylates for Selective Metal-Ion Exchange and Luminesc

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• 作者：Yu-Jing Hu ; Jin Yang ; Ying-Ying Liu ; Shuyan Song ; Jian-Fang Ma
• 刊名：Crystal Growth & Design
• 出版年：2015
• 出版时间：August 5, 2015
• 年：2015
• 卷：15
• 期：8
• 页码：3822-3831
• 全文大小：903K
• ISSN：1528-7505

文摘

A series of novel capsule-based coordination polymers (CPs), namely, [Cd(TTR4A)(L1)]路2.5H₂O (1), [Cd(TTR4A)(L2)]路2DMF路2H₂O (2), [Cd(TTR4A)(L3)]路2DMF路1.5H₂O (3), [Cd(TTR4A)(L4)]路1.5H₂O (4), and [Zn(TTR4A)(L1)]路DMF路H₂O (5), have been synthesized via the reaction of a bowl-like tetrakis(1,2,4-triazol-ylmethylresorcin[4]arene (TTR4A) ligand with d¹⁰ metal salts in the presence of varied dicarboxylates (H₂L1 = fumaric acid, H₂L2 = 1,3-benzenedicarboxylic acid, H₂L3 = 5-hydroxy-1,3-benzenedicarboxylic acid, H₂L4 = biphenylethene-4,4鈥?dicarboxylic acid, and DMF = N,N-dimethylformamide). CPs 1鈥?b>3 show rare two-dimensional (2D) capsule-based network structures. In 1鈥?b>3, two TTR4A bowls share two Cd(II) cations to give a capsule, which is further extended by the dicarboxylates into 2D networks. CP 4 features a fascinating three-dimensional 3-connected framework structure constructed from bowl-like [Cd₂TTR4A] units and L4 anions. In 5, each TTR4A coordinates with two Zn(II) cations by using two 1,2,4-triazole groups to generate a capsule, which is further connected by L1 ligands to afford a 2D network structure. Significantly, solid-state emissions and temperature variable luminescence were studied for 1鈥?b>4. In particular, the remarkable metal-ion exchange property of CP 1 was investigated.