Sulfate Binding with a Tripodal Tris（4-pyridylurea） Receptor  

作　　者：Rui Zhang Yanlei Zhang Jiamin Wang Liguo Ji Xiaojuan Huang Biao Wu 

机构地区：[1]Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shannxi 710069, China [2]State Key Laboratory for Oxo Synthesis & Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China

出　　处：《Chinese Journal of Chemistry》2013年第5期679-683,共5页中国化学（英文版）

基　　金：the National Natural Science Foundation of China

摘　　要：The tris（2-aminoethyl）amine （tren）-based tris（4-pyridylurea） receptor L has been synthesized and its anion binding properties were studied. The ligand forms a 2 ： 1 （host/guest） complex with MgSO4, [SO4^2 L2], in which a sulfate ion is encapsulated by six urea groups from the two ligands through multiple hydrogen bonds. The metal ions do not coordinate to the pyridyl groups but exist as the hydrate [Mg（H2O）6]2＋ and interact with the [SO4 L2] capsules in the outer coordination sphere to form a three dimensional extended structure. The anion binding behav- ior of ligand L in solution was studied.The tris（2-aminoethyl）amine （tren）-based tris（4-pyridylurea） receptor L has been synthesized and its anion binding properties were studied. The ligand forms a 2 ： 1 （host/guest） complex with MgSO4, [SO4^2 L2], in which a sulfate ion is encapsulated by six urea groups from the two ligands through multiple hydrogen bonds. The metal ions do not coordinate to the pyridyl groups but exist as the hydrate [Mg（H2O）6]2＋ and interact with the [SO4 L2] capsules in the outer coordination sphere to form a three dimensional extended structure. The anion binding behav- ior of ligand L in solution was studied.

关 键 词：anion binding tripodal tris（4-pyridylurea） SULFATE CAPSULE 

分 类 号：O623.663[理学—有机化学] Q516[理学—化学]