Observation and modeling of conformational molecular structures driving the self-assembly of tri-adamantyl benzene on Ag(111)

Literature Information

Publication Date 2015-11-27
DOI 10.1039/C5CP06733B
Impact Factor 3.676
Authors

Bastien Calmettes, Nicolas Estrampes, Christophe Coudret, Thomas J. Roussel, Jordi Faraudo, Roland Coratger


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Abstract

The self-organization of tri-adamantyl (TAB) benzene molecules has been investigated using low temperature scanning tunneling microscopy (LT-STM). The molecular structures have also been studied using molecular modeling. In particular, these calculations have been performed on large areas (1000 nm2) from the atomic structure of the molecular building block, combining molecular dynamics (MD) and Monte-Carlo (MC) approaches. These investigations show that the structure of the molecule and its flexibility allow for the formation of different networks as a function of surface coverage. The calculations demonstrate that the stability of the largest structures is obtained through the increase of the interfacial energy induced by the rotation of the adamantyl groups, a behavior whose consequences explain the subtle contrasts observed in the experimental STM images.

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Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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