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

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 mul...

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Bibliographic Details
Published in中国化学：英文版 no. 5; pp. 679 - 683
Main Author Rui Zhang Yanlei Zhang Jiamin Wang Liguo Ji Xiaojuan Huang Biao Wu
Format Journal Article
LanguageEnglish
Published 2013
Subjects
三脚架
受体
干燥
硫酸根离子
绑定
配位体
金属离子
阴离子结合
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Summary: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.
Bibliography:anion binding, tripodal tris（4-pyridylurea）, sulfate, capsule
31-1547/O6
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.
ISSN:1001-604X
1614-7065