The missing link: A 2D metal-organic rotaxane framework (MORF) with one rotaxane linker and one naked linker

被引:22
作者
Hoffart, Dennis J. [1 ]
Loeb, Stephen J. [1 ]
机构
[1] Univ Windsor, Dept Chem & Biochem, Windsor, ON N9B 3P4, Canada
关键词
nitrogen ligands; self-assembly; coordination polymer; metal organic framework; rotaxane;
D O I
10.1080/10610270600979165
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The [2] pseudorotaxane formed between the dicationic axle 1,2-bis-(4,4'-bipyridinium-mono-N-oxide) ethane and dibenzo-24-crown-8 ether (DB24C8) can act as a bridging ligand between metal centers to form metal organic rotaxane frameworks (MORFs). When cadmium( II) is used as the metal center the resulting structure is a network in which two [2] pseudorotaxanes, two 'naked' axles and two triflate anions coordinate to the Cd(II) center in a trans,-trans,-trans-arrangement. The two different linking ligands form a 2D 'square' net with only one direction comprised of rotaxanes. These nets layer in an A-B-A-B fashion with the crown ether units of one layer blocking the openings of the next layer to eliminate the formation of channels.
引用
收藏
页码:89 / 93
页数:5
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