Regulation of the Chiral Twist and Supramolecular Chirality in Co-Assemblies of Amphiphilic L-Glutamic Acid with Bipyridines
文献类型：期刊论文
| 作者 | Zhu, Xuefeng; Duan, Pengfei; Zhang, Li; Liu, Minghua |
| 刊名 | CHEMISTRY-A EUROPEAN JOURNAL
 |
| 出版日期 | 2011-03-01 |
| 卷号 | 17期号:12页码:3429-3437 |
| 关键词 | Amphiphiles Chirality Hydrogels Nanostructures Supramolecular Chemistry |
| ISSN号 | 0947-6539 |
| DOI | 10.1002/chem.201002595 |
| 英文摘要 | A series of amphiphilic L-glutamic acid derivatives with various saturated alkyl chains has been designed and their co-assembly with 4,4'-bipyridine in aqueous media has been investigated. While the individual amphiphiles formed hydrogels with water and self-assembled into fine fiber networks, the addition of 4,4'-bipyridine caused significant changes in the co-assembled nanostructures such that twisted chiral ribbons were formed. In these supramolecular systems, either fine structural changes or adjustment of the stoichiometric ratio of the two components had crucial effects on the formation of the chiral twists. Based on detailed investigations by SEM and XRD analyses, FTIR, CD, and UV/Vis spectroscopies, and molecular simulation, it is considered that a delicate synergistic balance between pi-pi stacking, hydrophobic, and chiral interactions is responsible for the formation of the chiral twists. An interesting sandwich structure, in which an excess of 4,4'-bipyridine is inserted into the space of primary cages constructed from the amphiphile and 4,4'-bipyridine, is proposed. Remarkably, the handedness of these chiral twists is related not only to the chiral center of the glutamic unit, but also the chain length of the alkyl tails. This work provides a deeper understanding of the formation mechanism of chiral twists, and exemplifies a feasible shortcut to the rational design of chiral structures from basic molecular structures to supramolecular systems. |
| 语种 | 英语 |
| WOS记录号 | WOS:000288099200019 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/72133]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Liu, Minghua |
| 作者单位 | Chinese Acad Sci, Inst Chem, CAS Key Lab Colloid Interface & Chem Thermodynam, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Xuefeng,Duan, Pengfei,Zhang, Li,et al. Regulation of the Chiral Twist and Supramolecular Chirality in Co-Assemblies of Amphiphilic L-Glutamic Acid with Bipyridines[J]. CHEMISTRY-A EUROPEAN JOURNAL,2011,17(12):3429-3437. |
| APA | Zhu, Xuefeng,Duan, Pengfei,Zhang, Li,&Liu, Minghua.(2011).Regulation of the Chiral Twist and Supramolecular Chirality in Co-Assemblies of Amphiphilic L-Glutamic Acid with Bipyridines.CHEMISTRY-A EUROPEAN JOURNAL,17(12),3429-3437. |
| MLA | Zhu, Xuefeng,et al."Regulation of the Chiral Twist and Supramolecular Chirality in Co-Assemblies of Amphiphilic L-Glutamic Acid with Bipyridines".CHEMISTRY-A EUROPEAN JOURNAL 17.12(2011):3429-3437. |
入库方式： OAI收割
来源：化学研究所
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