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Title: Nucleoside-Assisted Self-Assembly of Oligo(p-phenylenevinylene)s at Liquid/Solid Interface: Chirality and Nanostructures
Authors: Guo, Zongxia ×
De Cat, Inge
Van Averbeke, Bernard
Lin, Jianbin
Wang, Guojie
Xu, Hong
Lazzaroni, Roberto
Beljonne, David
Meijer, E. W
Schenning, Albertus P. H. J
De Feyter, Steven #
Issue Date: Nov-2011
Publisher: American Chemical Society
Series Title: Journal of the American Chemical Society vol:133 issue:44 pages:17764-17771
Abstract: The formation of DNA nucleoside-assisted pi-conjugated nanostructures was studied by means of scanning tunneling microscopy (STM) and force field simulations. Upon adsorption of the achiral oligo(p-phenylenevinylene) (OPV) derivative at the liquid/solid interface, racemic conglomerates with mirror related rosettes are formed. Addition of the DNA nucleosides D- and L-thymidine, which act as "chiral handles", has a major effect on the supramolecular structure and the expression of chirality of the achiral OPV molecules. The influence of these "chiral handles" on the expression of chirality is probed at two levels: monolayer symmetry and monolayer orientation with respect to the substrate. This Was further explored by tuning the molar ratio of the building blocks. Molecular modeling simulations give an atomistic insight into the monolayer construction, as well as the energetics governing the assembly. Thymidine is able to direct the chirality and the pattern of OPV molecules On the surface, creating chiral lamellae of pi-conjugated dimers
ISSN: 0002-7863
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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