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Two-Dimensional Self-Assembly of Linear Molecular Rods at the Liquid/Solid Interface?
JournalArticle (Originalarbeit in einer wissenschaftlichen Zeitschrift)
 
ID 675808
Author(s) Mu, Zhongcheng; Shu, Lijin; Fuchs, Harald; Mayor, Marcel; Chi, Lifeng
Author(s) at UniBasel Mayor, Marcel
Year 2011
Title Two-Dimensional Self-Assembly of Linear Molecular Rods at the Liquid/Solid Interface?
Journal Langmuir
Volume 27
Number 4
Pages / Article-Number 1359-63
Abstract We report on the synthesis and scanning tunneling microscopy (STM) studies of a series of linear molecular rods (1−5) comprising different numbers and/or spatial arrangements of perfluorinated benzene and benzene subunits interlinked with diacetylenes in the para position and decorated with or without terminal dodecyl chains. The molecules organize themselves into well-ordered 2D crystal structures at the liquid/solid interface through intermolecular and molecule−substrate interactions. Whereas the molecules substituted by dodecyl chains form the lamellar structures with alternating rigid core rows and alkyl chain rows, the unsubstituted ones change the orientation of the rigid backbones with respect to the lamellar axis. The molecular arrangement is not influenced by fluoro substituents on any phenyl ring of the backbone, which suggests that the interactions between the π-conjugated backbones are dominated by close packing rather than by the dipole moments of the rods or fluorine-based intermolecular interactions.
Publisher American Chemical Society
ISSN/ISBN 0743-7463 ; 1520-5827
edoc-URL http://edoc.unibas.ch/dok/A5843751
Full Text on edoc No
Digital Object Identifier DOI 10.1021/la1040079
PubMed ID http://www.ncbi.nlm.nih.gov/pubmed/21226486
ISI-Number WOS:000287048900020
Document type (ISI) Journal Article
 
   

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