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AgI-Directed Triple-Stranded Helicates with meta-Ethynylpyridine Ligands
被引:11
|作者:
Li, Qiaolian
[1
]
Huang, Fu
[2
]
Fan, Yaxun
[2
]
Wang, Yilin
[2
]
Li, Jianfeng
[1
]
He, Yujian
[1
]
Jiang, Hua
[2
,3
]
机构:
[1] Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
[2] Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
[3] Beijing Normal Univ, Coll Chem, Beijing 100875, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Helical structures;
Self-assembly;
Structure elucidation;
Ligand design;
Silver;
X-RAY-STRUCTURE;
SUPRAMOLECULAR CYLINDERS;
LANTHANIDE HELICATE;
COORDINATION SITES;
DNA;
DINUCLEAR;
BINDING;
ENCAPSULATION;
RECOGNITION;
CHEMISTRY;
D O I:
10.1002/ejic.201402345
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
A series of triple-stranded complexes, [1a(3)Ag] BF4, [1b(3)Ag]BF4, [2a(3)Ag(2)](BF4)(2), [2b(3)Ag(2)](BF4)(2), and [3(3)Ag(3)](BF4)(3), have been obtained through the self-assembly of Ag-I ions with p-phenylene ethynylpyridine ligands. X-ray crystallographic studies unambiguously demonstrated a Ag-I-directed monodentate triple-stranded helical structure in the solid state for 1b and 2b. A combination of NMR spectroscopy, HRMS (ESI), and isothermal titration microcalorimetry studies further confirmed that strands 1, 2, and 3 are also able to form triple-stranded helical structures in the presence of Ag-I ions in solution.
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页码:3235 / 3244
页数:10
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