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231223s2008 xx |||||o 00| ||eng c |
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|a 10.1021/la801299a
|2 doi
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|a pubmed24n0605.xml
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|a (DE-627)NLM181438844
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|a (NLM)18686982
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|a eng
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| 100 |
1 |
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|a Haro, Marta
|e verfasserin
|4 aut
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| 245 |
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|a Supramolecular architecture in Langmuir and Langmuir-Blodgett films incorporating a chiral azobenzene
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|c 2008
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 17.10.2008
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|a Date Revised 10.09.2008
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a This article describes the synthesis and fabrication of Langmuir and Langmuir-Blodgett (LB) films incorporating a chiral azobenzene derivative, namely, ( S)-4- sec-butyloxy-4'-[5''-(methyloxycarbonyl)pentyl-1''-oxy]azobenzene, abbreviated as AZO-C4(S). Appropriate conditions for the fabrication of monolayers of AZO-C4(S) at the air-water interface have been established, and the resulting Langmuir films have been characterized by a combination of surface pressure and surface potential versus area per molecule isotherms, Brewster angle microscopy, and UV-vis reflection spectroscopy. The results indicate the formation of an ordered trilayer at the air-water interface with UV-vis reflection spectroscopy showing a new supramolecular architecture for multilayered films as well as the formation of J aggregates. Films were transferred onto solid substrates, with AFM revealing well-ordered multilayered films without 3D defects. Infrared and UV-vis absorption spectroscopy indicate that the supramolecular architecture may be favored by the formation of H bonds between acid groups in neighboring layers and pi-pi intermolecular interactions. Circular dichroism spectra reveal chiro-optical activity in multilayered LB films
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|a Journal Article
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1 |
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|a del Barrio, Jesús
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Villares, Ana
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Oriol, Luis
|e verfasserin
|4 aut
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|a Cea, Pilar
|e verfasserin
|4 aut
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|a López, M Carmen
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 24(2008), 18 vom: 16. Sept., Seite 10196-203
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:24
|g year:2008
|g number:18
|g day:16
|g month:09
|g pages:10196-203
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| 856 |
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|u http://dx.doi.org/10.1021/la801299a
|3 Volltext
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