Fabrication of a complex two-dimensional adenine-perylene-3,4,9,10- tetracarboxylic dianhydride chiral nanoarchitecture through molecular self-assembly

Sun, Xiaonan and Mura, Manuela and Jonkman, Harry T. and Kantorovich, Lev N. and Silly, Fabien (2012) Fabrication of a complex two-dimensional adenine-perylene-3,4,9,10- tetracarboxylic dianhydride chiral nanoarchitecture through molecular self-assembly. Journal of Physical Chemistry C, 116 (3). pp. 2493-2499. ISSN 1932-7447

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Abstract

The two-dimensional self-assembly of a nonsymmetric adenine DNA base mixed with symmetric perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA) molecules is investigated using scanning tunneling microscopy (STM). We experimentally observe that these two building blocks form a complex close-packed chiral supramolecular network on Au(111). The unit cell of the adenine-PTCDA nanoarchitecture is composed of 14 molecules. The high stability of this structure relies on PTCDA-PTCDA and PTCDA-adenine hydrogen bonding. Detailed theoretical analysis based on the density functional theory (DFT) calculations reveals that adenine molecules work as a "glue", providing additional strengthening to the PTCDA-based skeleton of this sophisticated multicomponent nanoarchitecture. At the same time, we find that orientation and chirality of adenine molecules across the monolayer is likely to vary, leading to a disorder in the atomistic structure of the entire assembly. © 2011 American Chemical Society.

Keywords:Adenine molecules, Atomistic structure, Au(1 1 1 ), Building blockes, Density functional theory calculations, High stability, Molecular self assembly, Multicomponents, Nano-architecture, Nonsymmetric, Perylene-3 ,4 ,9 ,10-tetracarboxylic dianhydride, Scanning Tunneling Microscopy (stm), Supramolecular networks, Unit cells, Density functional theory, Hydrogen, Hydrogen bonds, Molecules, Monolayers, Scanning tunneling microscopy, Self assembly, Two dimensional, Stereochemistry
Subjects:F Physical Sciences > F320 Chemical Physics
F Physical Sciences > F130 Structural Chemistry
Divisions:College of Science > School of Mathematics and Physics
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ID Code:16686
Deposited On:12 Feb 2015 17:03

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