Supramolecular Corrals on Surfaces Resulting from Aromatic Interactions of Nonplanar Triazoles

Siddharth Jethwa; Esben Leonhard Kolsbjerg; Sundar Raja Vadapoo; Jacob  Lind Cramer; Lutz Lammich; Kurt Vesterager Gothelf; Bjørk Hammer; Trolle René Linderoth

doi:10.1021/acsnano.7b03484

Supramolecular Corrals on Surfaces Resulting from Aromatic Interactions of Nonplanar Triazoles

Siddharth Jethwa, Esben Leonhard Kolsbjerg, Sundar Raja Vadapoo, Jacob Lind Cramer , Lutz Lammich, Kurt Vesterager Gothelf, Bjørk Hammer, Trolle René Linderoth

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review

Abstract

Interaction forces between aromatic moieties, often referred to as π–π interactions, are an important element in stabilizing complex supramolecular structures. For supramolecular self-assembly occurring on surfaces, where aromatic moieties are typically forced to adsorb coplanar with the surface, the possible role of intermolecular aromatic interactions is much less explored. Here, we report on unusual, ring-shaped supramolecular corral surface structures resulting from adsorption of a molecule with nonplanar structure, allowing for intermolecular aromatic interactions. The discrete corral structures are observed using high-resolution scanning tunneling microscopy, and the energetic driving forces for their formation are elucidated using density functional theory calculations and Monte Carlo simulations. The individual corrals involve between 11 and 18 molecules bound through triazole moieties to a ring-shaped ensemble of bridge site positions on (111) surfaces of copper, silver, or gold. The curvature required to form the corrals is identified to result from the angle dependence of aromatic interactions between molecular phenanthrene moieties. The study provides detailed quantitative insights into triazole−surface and aromatic interactions and illustrates how they may be used to drive surface supramolecular self-assembly.

Originalsprog	Engelsk
Tidsskrift	ACS Nano
Vol/bind	11
Nummer	8
Sider (fra-til)	8302-8310
Antal sider	9
ISSN	1936-0851
DOI	https://doi.org/10.1021/acsnano.7b03484
Status	Udgivet - 1 aug. 2017

Adgang til dokumentet

10.1021/acsnano.7b03484

Citationsformater

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title = "Supramolecular Corrals on Surfaces Resulting from Aromatic Interactions of Nonplanar Triazoles",

abstract = "Interaction forces between aromatic moieties, often referred to as π–π interactions, are an important element in stabilizing complex supramolecular structures. For supramolecular self-assembly occurring on surfaces, where aromatic moieties are typically forced to adsorb coplanar with the surface, the possible role of intermolecular aromatic interactions is much less explored. Here, we report on unusual, ring-shaped supramolecular corral surface structures resulting from adsorption of a molecule with nonplanar structure, allowing for intermolecular aromatic interactions. The discrete corral structures are observed using high-resolution scanning tunneling microscopy, and the energetic driving forces for their formation are elucidated using density functional theory calculations and Monte Carlo simulations. The individual corrals involve between 11 and 18 molecules bound through triazole moieties to a ring-shaped ensemble of bridge site positions on (111) surfaces of copper, silver, or gold. The curvature required to form the corrals is identified to result from the angle dependence of aromatic interactions between molecular phenanthrene moieties. The study provides detailed quantitative insights into triazole−surface and aromatic interactions and illustrates how they may be used to drive surface supramolecular self-assembly.",

author = "Siddharth Jethwa and Kolsbjerg, {Esben Leonhard} and Vadapoo, {Sundar Raja} and {Lind Cramer}, Jacob and Lutz Lammich and Gothelf, {Kurt Vesterager} and Bj{\o}rk Hammer and Linderoth, {Trolle Ren{\'e}}",

year = "2017",

month = aug,

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doi = "10.1021/acsnano.7b03484",

language = "English",

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journal = "ACS Nano",

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T1 - Supramolecular Corrals on Surfaces Resulting from Aromatic Interactions of Nonplanar Triazoles

AU - Jethwa, Siddharth

AU - Kolsbjerg, Esben Leonhard

AU - Vadapoo, Sundar Raja

AU - Lind Cramer , Jacob

AU - Lammich, Lutz

AU - Gothelf, Kurt Vesterager

AU - Hammer, Bjørk

AU - Linderoth, Trolle René

PY - 2017/8/1

Y1 - 2017/8/1

N2 - Interaction forces between aromatic moieties, often referred to as π–π interactions, are an important element in stabilizing complex supramolecular structures. For supramolecular self-assembly occurring on surfaces, where aromatic moieties are typically forced to adsorb coplanar with the surface, the possible role of intermolecular aromatic interactions is much less explored. Here, we report on unusual, ring-shaped supramolecular corral surface structures resulting from adsorption of a molecule with nonplanar structure, allowing for intermolecular aromatic interactions. The discrete corral structures are observed using high-resolution scanning tunneling microscopy, and the energetic driving forces for their formation are elucidated using density functional theory calculations and Monte Carlo simulations. The individual corrals involve between 11 and 18 molecules bound through triazole moieties to a ring-shaped ensemble of bridge site positions on (111) surfaces of copper, silver, or gold. The curvature required to form the corrals is identified to result from the angle dependence of aromatic interactions between molecular phenanthrene moieties. The study provides detailed quantitative insights into triazole−surface and aromatic interactions and illustrates how they may be used to drive surface supramolecular self-assembly.

AB - Interaction forces between aromatic moieties, often referred to as π–π interactions, are an important element in stabilizing complex supramolecular structures. For supramolecular self-assembly occurring on surfaces, where aromatic moieties are typically forced to adsorb coplanar with the surface, the possible role of intermolecular aromatic interactions is much less explored. Here, we report on unusual, ring-shaped supramolecular corral surface structures resulting from adsorption of a molecule with nonplanar structure, allowing for intermolecular aromatic interactions. The discrete corral structures are observed using high-resolution scanning tunneling microscopy, and the energetic driving forces for their formation are elucidated using density functional theory calculations and Monte Carlo simulations. The individual corrals involve between 11 and 18 molecules bound through triazole moieties to a ring-shaped ensemble of bridge site positions on (111) surfaces of copper, silver, or gold. The curvature required to form the corrals is identified to result from the angle dependence of aromatic interactions between molecular phenanthrene moieties. The study provides detailed quantitative insights into triazole−surface and aromatic interactions and illustrates how they may be used to drive surface supramolecular self-assembly.

U2 - 10.1021/acsnano.7b03484

DO - 10.1021/acsnano.7b03484

M3 - Journal article

C2 - 28762721

SN - 1936-0851

VL - 11

SP - 8302

EP - 8310

JO - ACS Nano

JF - ACS Nano

IS - 8

ER -