Supramolecular assembly of a series of chiral dendrimers in interfacial films
文献类型：期刊论文
| 作者 | Yuan, J; Deng, GJ; Fan, QH; Liu, MH |
| 刊名 | THIN SOLID FILMS
 |
| 出版日期 | 2004-11-01 |
| 卷号 | 466期号:1-2页码:295-302 |
| 关键词 | Atomic Force Microscope (Afm) Circular Dichroism (Cd) Dendrimer Multilayer Surface Pressure Surface Morphology |
| ISSN号 | 0040-6090 |
| DOI | 10.1016/j.tsf.2004.02.045 |
| 英文摘要 | Supramolecular assembly and interfacial properties of a series of novel binaphthyl containing dendrimers from generation 1 through generation 4 have been investigated at the air/water interface and in solid substrates. Due to the lack of either long alkyl chains or strong hydrophilic groups, the dendrimer molecules tend to aggregate together to form stable two-dimensional ultrathin films, as verified by pi-A and A - t measurements. Atomic force microscope (AFM) measurements of the transferred one-layer ultrathin films indicate that all the dendrimers show disk-like morphologies, which could be varied in particle size upon changing the surface pressure. The height profiles reveal that the height of the disks is between that of a monolayer and a bilayer, indicating that they are formed due to the aggregation of dendrimers with a distortion and/or partial overlapping. Circular dichroism (CD) spectra of the transferred multilayer films show Cotton effects due to the exciton couplet of the aromatic moieties adjacent to the bis(diphenylphosphino)-binaphthyl moiety, which is an active catalytic site for the dendrimer. With the increment of the generation, the intensity of the Cotton effects increased, suggesting that the optical active site of the dendrimer can be controlled by the outside wedge. (C) 2004 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000224019300044 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/81597]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Fan, QH |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, CAS Key Lab Colloid & Interface Sci, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Lab Chem Biol, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, J,Deng, GJ,Fan, QH,et al. Supramolecular assembly of a series of chiral dendrimers in interfacial films[J]. THIN SOLID FILMS,2004,466(1-2):295-302. |
| APA | Yuan, J,Deng, GJ,Fan, QH,&Liu, MH.(2004).Supramolecular assembly of a series of chiral dendrimers in interfacial films.THIN SOLID FILMS,466(1-2),295-302. |
| MLA | Yuan, J,et al."Supramolecular assembly of a series of chiral dendrimers in interfacial films".THIN SOLID FILMS 466.1-2(2004):295-302. |
入库方式： OAI收割
来源：化学研究所
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