Self-assembly of decoupled borazines on metal surfaces: The role of the peripheral groups

Nataliya Kalashnyk, Praveen Ganeshnagaswaran, Simon Kervyn De Meerendre, Massimo Riello, Ben Moreton, Tim S. Jones, Alessandro Devita, Davide Bonifazi, Giovanni Costantini

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

Two borazine derivatives have been synthesised to investigate their self-assembly behaviour on Au(111) and Cu(111) surfaces by scanning tunnelling microscopy (STM) and theoretical simulations. Both borazines form extended 2D networks upon adsorption on both substrates at room temperature. Whereas the more compact triphenyl borazine 1 arranges into close-packed ordered molecular islands with an extremely low density of defects on both substrates, the tris(phenyl-4-phenylethynyl) derivative 2 assembles into porous molecular networks due to its longer lateral substituents. For both species, the steric hindrance between the phenyl and mesityl substituents results in an effective decoupling of the central borazine core from the surface. For borazine 1, this is enough to weaken the molecule-substrate interaction, so that the assemblies are only driven by attractive van der Waals intermolecular forces. For the longer and more flexible borazine 2, a stronger molecule-substrate interaction becomes possible through its peripheral substituents on the more reactive copper surface.

langue originaleAnglais
Pages (de - à)11856-11862
Nombre de pages7
journalChemistry: A European Journal
Volume20
Numéro de publication37
Les DOIs
étatPublié - 2014

Empreinte digitale

Self assembly
Metals
Substrates
Derivatives
Van der Waals forces
Molecules
Scanning tunneling microscopy
Copper
Adsorption
Defects
borazine
Temperature

Citer ceci

Kalashnyk, N., Ganeshnagaswaran, P., Kervyn De Meerendre, S., Riello, M., Moreton, B., Jones, T. S., ... Costantini, G. (2014). Self-assembly of decoupled borazines on metal surfaces: The role of the peripheral groups. Chemistry: A European Journal, 20(37), 11856-11862. https://doi.org/10.1002/chem.201402839
Kalashnyk, Nataliya ; Ganeshnagaswaran, Praveen ; Kervyn De Meerendre, Simon ; Riello, Massimo ; Moreton, Ben ; Jones, Tim S. ; Devita, Alessandro ; Bonifazi, Davide ; Costantini, Giovanni. / Self-assembly of decoupled borazines on metal surfaces: The role of the peripheral groups. Dans: Chemistry: A European Journal. 2014 ; Vol 20, Numéro 37. p. 11856-11862.
@article{4c291e81e4b54a6bb71d0706a5b5f187,
title = "Self-assembly of decoupled borazines on metal surfaces: The role of the peripheral groups",
abstract = "Two borazine derivatives have been synthesised to investigate their self-assembly behaviour on Au(111) and Cu(111) surfaces by scanning tunnelling microscopy (STM) and theoretical simulations. Both borazines form extended 2D networks upon adsorption on both substrates at room temperature. Whereas the more compact triphenyl borazine 1 arranges into close-packed ordered molecular islands with an extremely low density of defects on both substrates, the tris(phenyl-4-phenylethynyl) derivative 2 assembles into porous molecular networks due to its longer lateral substituents. For both species, the steric hindrance between the phenyl and mesityl substituents results in an effective decoupling of the central borazine core from the surface. For borazine 1, this is enough to weaken the molecule-substrate interaction, so that the assemblies are only driven by attractive van der Waals intermolecular forces. For the longer and more flexible borazine 2, a stronger molecule-substrate interaction becomes possible through its peripheral substituents on the more reactive copper surface.",
keywords = "borazines, molecular dynamics, scanning tunnelling microscopy, self-assembly, surface chemistry",
author = "Nataliya Kalashnyk and Praveen Ganeshnagaswaran and {Kervyn De Meerendre}, Simon and Massimo Riello and Ben Moreton and Jones, {Tim S.} and Alessandro Devita and Davide Bonifazi and Giovanni Costantini",
year = "2014",
doi = "10.1002/chem.201402839",
language = "English",
volume = "20",
pages = "11856--11862",
journal = "Chemistry: A European Journal",
issn = "0947-6539",
publisher = "Wiley Online Library",
number = "37",

}

Kalashnyk, N, Ganeshnagaswaran, P, Kervyn De Meerendre, S, Riello, M, Moreton, B, Jones, TS, Devita, A, Bonifazi, D & Costantini, G 2014, 'Self-assembly of decoupled borazines on metal surfaces: The role of the peripheral groups', Chemistry: A European Journal, VOL. 20, Numéro 37, p. 11856-11862. https://doi.org/10.1002/chem.201402839

Self-assembly of decoupled borazines on metal surfaces: The role of the peripheral groups. / Kalashnyk, Nataliya; Ganeshnagaswaran, Praveen; Kervyn De Meerendre, Simon; Riello, Massimo; Moreton, Ben; Jones, Tim S.; Devita, Alessandro; Bonifazi, Davide; Costantini, Giovanni.

Dans: Chemistry: A European Journal, Vol 20, Numéro 37, 2014, p. 11856-11862.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - Self-assembly of decoupled borazines on metal surfaces: The role of the peripheral groups

AU - Kalashnyk, Nataliya

AU - Ganeshnagaswaran, Praveen

AU - Kervyn De Meerendre, Simon

AU - Riello, Massimo

AU - Moreton, Ben

AU - Jones, Tim S.

AU - Devita, Alessandro

AU - Bonifazi, Davide

AU - Costantini, Giovanni

PY - 2014

Y1 - 2014

N2 - Two borazine derivatives have been synthesised to investigate their self-assembly behaviour on Au(111) and Cu(111) surfaces by scanning tunnelling microscopy (STM) and theoretical simulations. Both borazines form extended 2D networks upon adsorption on both substrates at room temperature. Whereas the more compact triphenyl borazine 1 arranges into close-packed ordered molecular islands with an extremely low density of defects on both substrates, the tris(phenyl-4-phenylethynyl) derivative 2 assembles into porous molecular networks due to its longer lateral substituents. For both species, the steric hindrance between the phenyl and mesityl substituents results in an effective decoupling of the central borazine core from the surface. For borazine 1, this is enough to weaken the molecule-substrate interaction, so that the assemblies are only driven by attractive van der Waals intermolecular forces. For the longer and more flexible borazine 2, a stronger molecule-substrate interaction becomes possible through its peripheral substituents on the more reactive copper surface.

AB - Two borazine derivatives have been synthesised to investigate their self-assembly behaviour on Au(111) and Cu(111) surfaces by scanning tunnelling microscopy (STM) and theoretical simulations. Both borazines form extended 2D networks upon adsorption on both substrates at room temperature. Whereas the more compact triphenyl borazine 1 arranges into close-packed ordered molecular islands with an extremely low density of defects on both substrates, the tris(phenyl-4-phenylethynyl) derivative 2 assembles into porous molecular networks due to its longer lateral substituents. For both species, the steric hindrance between the phenyl and mesityl substituents results in an effective decoupling of the central borazine core from the surface. For borazine 1, this is enough to weaken the molecule-substrate interaction, so that the assemblies are only driven by attractive van der Waals intermolecular forces. For the longer and more flexible borazine 2, a stronger molecule-substrate interaction becomes possible through its peripheral substituents on the more reactive copper surface.

KW - borazines

KW - molecular dynamics

KW - scanning tunnelling microscopy

KW - self-assembly

KW - surface chemistry

UR - http://www.scopus.com/inward/record.url?scp=84906947640&partnerID=8YFLogxK

U2 - 10.1002/chem.201402839

DO - 10.1002/chem.201402839

M3 - Article

AN - SCOPUS:84906947640

VL - 20

SP - 11856

EP - 11862

JO - Chemistry: A European Journal

JF - Chemistry: A European Journal

SN - 0947-6539

IS - 37

ER -