Sorting of Molecular Building Blocks from Solution to Surface

Hodaya Keisar, Graham De Ruiter, Aldrik H. Velders, Petr Milko, Antonino Gulino, Guennadi Evmenenko, Linda J.W. Shimon, Yael Diskin-Posner, Michal Lahav, Milko van der Boom

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We demonstrate that molecular gradients on organic monolayers are formed by preferential binding of ruthenium complexes from solutions also containing an equimolar amount of isostructural osmium complexes. The monolayer consists of a nanometer-thick assembly of 1,3,5-tris(4-pyridylethenyl)benzene (TPEB) covalently attached to a silicon- or metal-oxide surface. The molecular gradient of ruthenium and osmium complexes is orthogonal to the surface plane. This gradient propagates throughout the molecular assembly with thicknesses over 30 nanometers. Using other monolayers consisting of closely related organic molecules or metal complexes results in the formation of molecular assemblies having an equimolar distribution of ruthenium and osmium complexes. Spectroscopic and computational studies revealed that the geometry of the complexes and the electronic properties of their ligands are nearly identical. The isostructural osmium and ruthenium complexes are packed differently in crysrals grown from solution. The different packing behavior, combined with the organic monolayer, significantly contributes to the observed differences in chemical composition on the surface.

Original languageEnglish
JournalJournal of the American Chemical Society
DOIs
Publication statusAccepted/In press - Mar 16 2018

Fingerprint

Osmium
Ruthenium
Sorting
Monolayers
Coordination Complexes
Silicon
Metal complexes
Benzene
Electronic properties
Oxides
Metals
Ligands
Molecules
Geometry
Chemical analysis

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Sorting of Molecular Building Blocks from Solution to Surface. / Keisar, Hodaya; De Ruiter, Graham; Velders, Aldrik H.; Milko, Petr; Gulino, Antonino; Evmenenko, Guennadi; Shimon, Linda J.W.; Diskin-Posner, Yael; Lahav, Michal; van der Boom, Milko.

In: Journal of the American Chemical Society, 16.03.2018.

Research output: Contribution to journalArticle

Keisar, H, De Ruiter, G, Velders, AH, Milko, P, Gulino, A, Evmenenko, G, Shimon, LJW, Diskin-Posner, Y, Lahav, M & van der Boom, M 2018, 'Sorting of Molecular Building Blocks from Solution to Surface', Journal of the American Chemical Society. https://doi.org/10.1021/jacs.8b02968
Keisar, Hodaya ; De Ruiter, Graham ; Velders, Aldrik H. ; Milko, Petr ; Gulino, Antonino ; Evmenenko, Guennadi ; Shimon, Linda J.W. ; Diskin-Posner, Yael ; Lahav, Michal ; van der Boom, Milko. / Sorting of Molecular Building Blocks from Solution to Surface. In: Journal of the American Chemical Society. 2018.
@article{72d10e66d3654b8bb29c6f33e190fdac,
title = "Sorting of Molecular Building Blocks from Solution to Surface",
abstract = "We demonstrate that molecular gradients on organic monolayers are formed by preferential binding of ruthenium complexes from solutions also containing an equimolar amount of isostructural osmium complexes. The monolayer consists of a nanometer-thick assembly of 1,3,5-tris(4-pyridylethenyl)benzene (TPEB) covalently attached to a silicon- or metal-oxide surface. The molecular gradient of ruthenium and osmium complexes is orthogonal to the surface plane. This gradient propagates throughout the molecular assembly with thicknesses over 30 nanometers. Using other monolayers consisting of closely related organic molecules or metal complexes results in the formation of molecular assemblies having an equimolar distribution of ruthenium and osmium complexes. Spectroscopic and computational studies revealed that the geometry of the complexes and the electronic properties of their ligands are nearly identical. The isostructural osmium and ruthenium complexes are packed differently in crysrals grown from solution. The different packing behavior, combined with the organic monolayer, significantly contributes to the observed differences in chemical composition on the surface.",
author = "Hodaya Keisar and {De Ruiter}, Graham and Velders, {Aldrik H.} and Petr Milko and Antonino Gulino and Guennadi Evmenenko and Shimon, {Linda J.W.} and Yael Diskin-Posner and Michal Lahav and {van der Boom}, Milko",
year = "2018",
month = "3",
day = "16",
doi = "10.1021/jacs.8b02968",
language = "English",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "American Chemical Society",

}

TY - JOUR

T1 - Sorting of Molecular Building Blocks from Solution to Surface

AU - Keisar, Hodaya

AU - De Ruiter, Graham

AU - Velders, Aldrik H.

AU - Milko, Petr

AU - Gulino, Antonino

AU - Evmenenko, Guennadi

AU - Shimon, Linda J.W.

AU - Diskin-Posner, Yael

AU - Lahav, Michal

AU - van der Boom, Milko

PY - 2018/3/16

Y1 - 2018/3/16

N2 - We demonstrate that molecular gradients on organic monolayers are formed by preferential binding of ruthenium complexes from solutions also containing an equimolar amount of isostructural osmium complexes. The monolayer consists of a nanometer-thick assembly of 1,3,5-tris(4-pyridylethenyl)benzene (TPEB) covalently attached to a silicon- or metal-oxide surface. The molecular gradient of ruthenium and osmium complexes is orthogonal to the surface plane. This gradient propagates throughout the molecular assembly with thicknesses over 30 nanometers. Using other monolayers consisting of closely related organic molecules or metal complexes results in the formation of molecular assemblies having an equimolar distribution of ruthenium and osmium complexes. Spectroscopic and computational studies revealed that the geometry of the complexes and the electronic properties of their ligands are nearly identical. The isostructural osmium and ruthenium complexes are packed differently in crysrals grown from solution. The different packing behavior, combined with the organic monolayer, significantly contributes to the observed differences in chemical composition on the surface.

AB - We demonstrate that molecular gradients on organic monolayers are formed by preferential binding of ruthenium complexes from solutions also containing an equimolar amount of isostructural osmium complexes. The monolayer consists of a nanometer-thick assembly of 1,3,5-tris(4-pyridylethenyl)benzene (TPEB) covalently attached to a silicon- or metal-oxide surface. The molecular gradient of ruthenium and osmium complexes is orthogonal to the surface plane. This gradient propagates throughout the molecular assembly with thicknesses over 30 nanometers. Using other monolayers consisting of closely related organic molecules or metal complexes results in the formation of molecular assemblies having an equimolar distribution of ruthenium and osmium complexes. Spectroscopic and computational studies revealed that the geometry of the complexes and the electronic properties of their ligands are nearly identical. The isostructural osmium and ruthenium complexes are packed differently in crysrals grown from solution. The different packing behavior, combined with the organic monolayer, significantly contributes to the observed differences in chemical composition on the surface.

UR - http://www.scopus.com/inward/record.url?scp=85047404176&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85047404176&partnerID=8YFLogxK

U2 - 10.1021/jacs.8b02968

DO - 10.1021/jacs.8b02968

M3 - Article

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

ER -