Molecular multistate systems formed in two-dimensional porous networks on Ag(111)

Kyung Hoon Chung, Howon Kim, Won Jun Jang, Jong Keon Yoon, Se-Jong Kahng, Jhinhwan Lee, Seungwu Han

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Host-guest interactions in porous supramolecular structures have been studied on surfaces using scanning tunneling microscopy, with anticipation of biochemical and sensor applications, but limited to cases of van der Waals interactions and hydrogen bonds. Here, we studied the intermolecular structures of 4,4″-dibromo-p-terphenyl molecules self-caged in porous supramolecular structures with halogen bonds on Ag(111). The caged molecules hopped among six different configurations at higher than 50 K, showing a propeller-like pattern. At 30 K, they stayed at one of six states that were stabilized with Br···Br halogen bonds and Br···H hydrogen bonds with energy gains of 225, 197, and 163 meV, as revealed by our density functional theory calculations. The self-caged structure provides a model system to simulate multistate supramolecular memories.

Original languageEnglish
Pages (from-to)302-306
Number of pages5
JournalJournal of Physical Chemistry C
Volume117
Issue number1
DOIs
Publication statusPublished - 2013 Jan 10

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Halogens
halogens
Hydrogen bonds
hydrogen bonds
Molecules
terphenyls
propellers
Scanning tunneling microscopy
Propellers
Density functional theory
scanning tunneling microscopy
molecules
interactions
density functional theory
Data storage equipment
sensors
Sensors
configurations
energy

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

Molecular multistate systems formed in two-dimensional porous networks on Ag(111). / Chung, Kyung Hoon; Kim, Howon; Jang, Won Jun; Yoon, Jong Keon; Kahng, Se-Jong; Lee, Jhinhwan; Han, Seungwu.

In: Journal of Physical Chemistry C, Vol. 117, No. 1, 10.01.2013, p. 302-306.

Research output: Contribution to journalArticle

Chung, Kyung Hoon ; Kim, Howon ; Jang, Won Jun ; Yoon, Jong Keon ; Kahng, Se-Jong ; Lee, Jhinhwan ; Han, Seungwu. / Molecular multistate systems formed in two-dimensional porous networks on Ag(111). In: Journal of Physical Chemistry C. 2013 ; Vol. 117, No. 1. pp. 302-306.
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