Multicomponent Self-Assembled Metal-Organic [3]Rotaxanes
文献类型：期刊论文
| 作者 | Yang, Yu-Dong1; Fan, Chuan-Cai2; Rambo, Brett M.3; Gong, Han-Yuan1; Xu, Li-Jin2; Xiang, Jun-Feng4; Sessler, Jonathan L.3,5 |
| 刊名 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 |
| 出版日期 | 2015-10-14 |
| 卷号 | 137期号:40页码:12966-12976 |
| 英文摘要 | A set of environmentally responsive metal organic [3]rotaxanes is described. These mechanically interlocked macromolecules may be prepared in quantitative yield via a one-pot procedure involving treatment of a flexible tetracationic macrocyde, known as the Texas-sized molecular box, with tri-1,3,5-benzenetricarboxylate anion and silver cations (Ag+). The use of this three-component mixture gives rise to a metal organic [3]rotaxane via a self-assembly process that occurs under ambient conditions in DMSO-d6 solution. The complex is stable in the presence of excess TFA. However, disassembly of the [3]rotaxane to produce anion-box associated entities may be triggered by adding a competitive counteranionic species (e.g., I-). Adding excess Ag+ serves to reverse this decomplexation process. The nature of the [3]rotaxane complex could be fine-tuned via application of an external stimulus. Increasing the temperature or adding small molecules (e.g., D20, methanol-d(4), acetonitrile-d(3), DMF-d7, acetone-d(6), or THF-d(8)) to the initial DMSO-d6 solution induces conformational flipping of the macrocyde within the overall complex (e.g., from limiting chair to chairlike forms). Support for the molecular stimuli responsive nature of the various structures came from solution-phase one- and two-dimensional (H-1, ID and 2D NOESY) NMR spectroscopic studies carried out in DMSO-d6. The core metal-linked rotaxane unit was characterized via single-crystal X-ray diffraction analysis. Initial evidence that the present self-assembly process is not limited to the use of the Ag+ cation came from studies involving Cd2+; this replacement results in formation of 2D metal organic rotaxane-containing frameworks (MORFs). |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/28906]  |
| 专题 | 化学研究所_分析测试中心 |
| 作者单位 | 1.Beijing Normal Univ, Coll Chem, Beijing 100875, Peoples R China 2.Renmin Univ China, Dept Chem, Beijing 100872, Peoples R China 3.Univ Texas Austin, Dept Chem, Austin, TX 78712 USA 4.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 5.Shanghai Univ, Dept Chem, Shanghai 200444, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Yu-Dong,Fan, Chuan-Cai,Rambo, Brett M.,et al. Multicomponent Self-Assembled Metal-Organic [3]Rotaxanes[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2015,137(40):12966-12976. |
| APA | Yang, Yu-Dong.,Fan, Chuan-Cai.,Rambo, Brett M..,Gong, Han-Yuan.,Xu, Li-Jin.,...&Sessler, Jonathan L..(2015).Multicomponent Self-Assembled Metal-Organic [3]Rotaxanes.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,137(40),12966-12976. |
| MLA | Yang, Yu-Dong,et al."Multicomponent Self-Assembled Metal-Organic [3]Rotaxanes".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 137.40(2015):12966-12976. |
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来源：化学研究所
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