Synthesis, characterization, and dye capture of a 3D Cd(II)-carboxylate pcu network

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• 作者：Meng-Jung Tsai ; Jing-Yun Wu ; ^{jyunwu@ncnu.edu.tw}
• 关键词：Cadmium ; Coordination polymer ; Dicarboxylate ; Dye adsorption ; Photoluminescence
• 刊名：Polyhedron
• 出版年：2017
• 出版时间：28 January 2017
• 年：2017
• 卷：122
• 期：Complete
• 页码：124-130
• 全文大小：2123 K
• 卷排序：122

文摘

The hydro(solvo)thermal reaction of Cd(NO3)2·4H2O and 2,6-naphthalenedicarboxylic acid (2,6-H2ndc) together with di(3-pyridylmethyl)amine, being as structure-direct reagent, in N,N′-dimethylacetamide (DMAc)–MeOH at 120 °C afforded a cadmium–carboxylate network, which is formulated as [Cd3(2,6-ndc)3(DMAc)4] (1) by single-crystal X-ray diffraction analysis. The extended architecture of 1 suits a three-dimensional (3D) six-connected slanted 412·63-pcu framework based on trinuclear Cd3(O2C)6(DMAc)4 clusters being symmetry-related by a 2-fold rotation axis. Dye adsorption explorations for methyl blue, methyl orange (MO), methylene blue (MB), rhodamine B (RB), and methyl yellow (MY) dyes clearly indicate that 1 has exhibited dye capture behavior for methyl blue from an aqueous solution, and can selectively bind methyl blue from a MO–methyl blue mixture. In addition, the thermal stability and photoluminescence properties of the crystalline material have also been studied.