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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1021/la9040387
|2 doi
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|a eng
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| 100 |
1 |
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|a Ma, Lulu
|e verfasserin
|4 aut
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|a Photochromic nanostructures based on diarylethenes with perylene diimide
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 02.08.2010
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|a Date Revised 27.04.2010
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a A bisthienylethene-functionalized perylene diimide (BTE-PDI) photochromic dyad was synthesized for self-assembly into 1-D nanotubes by a reprecipitation method. SEM and TEM observations showed that the nanotubes were formed from their 0-D precursors of hollow nanospheres. HR-TEM images revealed that both the nanospheres and the nanotubes have highly ordered lamellar structure, indicating the hierarchical process during assembly. The IR and XRD results revealed that DAE-PDI molecules were connected through intermolecular hydrogen bonds to form building blocks that self-assembled into nanostructures. Electronic absorption and fluorescence spectroscopic results indicated the H-aggregate nature of the self-assembled nanostructures. Competition and cooperation between the dipole-dipole interaction, intermolecular pi-pi stacking, and hydrophilic/hydrophobic interaction are suggested to result in nanostructures. Reconstruction was found to happen during the morphology transition progress from the 0-D nanospheres to the 1-D nanotubes, which was driven by donor-acceptor dipole-dipole interactions. Green emission at 520 nm originating from the DAE subunit was observed for the aggregates of vesicles and nanotubes, which could be regulated by photoirradiation with 365 nm light, suggesting the nanoaggregates to be photochromic switches
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|a Journal Article
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1 |
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|a Wang, Quanbo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lu, Guifen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Ruiping
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Xuan
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 26(2010), 9 vom: 04. Mai, Seite 6702-7
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:26
|g year:2010
|g number:9
|g day:04
|g month:05
|g pages:6702-7
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|u http://dx.doi.org/10.1021/la9040387
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