ICCAS OpenIR
Supramolecular assembly of a series of chiral dendrimers in interfacial films
Yuan, J; Deng, GJ; Fan, QH; Liu, MH
2004-11-01
Source PublicationTHIN SOLID FILMS
ISSN0040-6090
Volume466Issue:1-2Pages:295-302
AbstractSupramolecular 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.
KeywordAtomic Force Microscope (Afm) Circular Dichroism (Cd) Dendrimer Multilayer Surface Pressure Surface Morphology
DOI10.1016/j.tsf.2004.02.045
Indexed BySCI
Language英语
WOS IDWOS:000224019300044
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81598
Collection中国科学院化学研究所
Corresponding AuthorFan, QH
Affiliation1.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
Recommended Citation
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.
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