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题名: Ruthenium(II) Complexes of Aryl Triazole Foldamers as Receptors for Anions
作者: Wang, Ying1, 2; Zhao, Wei1, 2, 3, 4; Bie, Fusheng1, 2, 3; Wu, Le1, 2; Li, Xichen1, 2; Jiang, Hua1, 2, 3
关键词: anions ; foldamers ; helical structures ; receptors ; ruthenium
刊名: CHEMISTRY-A EUROPEAN JOURNAL
发表日期: 2016-04-04
卷: 22, 期:15, 页:5233-5242
收录类别: SCI
英文摘要: Ruthenium(II) complexes of oligo(bipyridine-phenyl triazole)s were synthesized as receptors for anions. The receptors, which are partially preorganized through metal-ligand interactions, can fold into a helical conformation to bind chloride, bromide, iodide, or nitrate anions in their inner cavities in acetone or competitive H-bonding media such as 5% water in acetone and DMSO. The short oligomer 1 can sandwich the studied anions with high affinity in acetone. Addition of 5% water to acetone results in overall decreases in the binding strength due to the binding competition from water, but does not change the basic binding mode. The highly competitive H-bonding solvent DMSO causes the receptor-anion interactions to become even weaker. However, in DMSO, the short receptor 1 is still able to bind the halide anions with moderate affinities in a 1:1 stoichiometry, whereas the longer oligomer 2 forms double-strand helices with an anion wrapped inside for all anions investigated so far.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35982
Appears in Collections:光化学实验室_期刊论文

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作者单位: 1.Beijing Normal Univ, Coll Chem, Key Lab Theoret & Computat Photochem, Minist Educ, Beijing 100875, Peoples R China
2.Beijing Normal Univ, Coll Chem, Key Lab Radiopharmaceut, Minist Educ, Beijing 100875, Peoples R China
3.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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