Dipodal ferrocene-based adsorbate molecules for self-assembled monolayers on gold

Tobias Weidner; Nirmalya Ballav; Michael Zharnikov; Andreas Priebe; Nicholas J. Long; Jörg Maurer; Rainer Winter; Alexander Rothenberger; Dieter Fenske; Dag Rother; Clemens Bruhn; Heinrich Fink; Ulrich Siemeling

doi:10.1002/chem.200701936

Dipodal ferrocene-based adsorbate molecules for self-assembled monolayers on gold

Tobias Weidner, Nirmalya Ballav, Michael Zharnikov, Andreas Priebe, Nicholas J. Long, Jörg Maurer, Rainer Winter, Alexander Rothenberger, Dieter Fenske, Dag Rother, Clemens Bruhn, Heinrich Fink, Ulrich Siemeling^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

1,1′-Difunctionalised ferrocene derivatives have been studied, which contain groups suitable for chemisorption on gold substrates, namely -NC, -PR₂ as well as a range of sulfur-containing units like -NCS, -SR, and thienyl. Thin films on gold have been fabricated from solution with most of these adsorbate species. Film thickness, composition and structure were investigated primarily by X-ray photoelectron and near-edge X-ray absorption fine-structure spectroscopy. The quality of self-assembled monolayers fabricated from 1,1′-diisocyanoferrocene (1) and 1,1′- diisothiocyanatoferrocene (2) turned out to be superior to that of films based on the other adsorbate species investigated. In addition to the surface coordination behaviour of 1 towards gold substrates, relevant aspects of the molecular coordination chemistry of 1 have also been addressed, including the synthesis and characterisation of [(μ-1){Cr(CO)₅}₂], [Ag₂(μ-1)2](NO₃)₂·H₂O and [(μ-1)-(AuCl)₂]. The crystal structure of the gold complex is governed by aurophilic interactions and can be taken as a model for the arrangement of 1 in self-assembled monolayers on gold.

Original language	English (US)
Pages (from-to)	4346-4360
Number of pages	15
Journal	Chemistry - A European Journal
Volume	14
Issue number	14
DOIs	https://doi.org/10.1002/chem.200701936
State	Published - May 9 2008
Externally published	Yes

Keywords

Aurophilicity
Iron
NEXAFS spectroscopy
S ligands
Thin films

ASJC Scopus subject areas

Catalysis
Organic Chemistry

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10.1002/chem.200701936

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title = "Dipodal ferrocene-based adsorbate molecules for self-assembled monolayers on gold",

abstract = "1,1′-Difunctionalised ferrocene derivatives have been studied, which contain groups suitable for chemisorption on gold substrates, namely -NC, -PR2 as well as a range of sulfur-containing units like -NCS, -SR, and thienyl. Thin films on gold have been fabricated from solution with most of these adsorbate species. Film thickness, composition and structure were investigated primarily by X-ray photoelectron and near-edge X-ray absorption fine-structure spectroscopy. The quality of self-assembled monolayers fabricated from 1,1′-diisocyanoferrocene (1) and 1,1′- diisothiocyanatoferrocene (2) turned out to be superior to that of films based on the other adsorbate species investigated. In addition to the surface coordination behaviour of 1 towards gold substrates, relevant aspects of the molecular coordination chemistry of 1 have also been addressed, including the synthesis and characterisation of [(μ-1){Cr(CO)5}2], [Ag2(μ-1)2](NO3)2·H2O and [(μ-1)-(AuCl)2]. The crystal structure of the gold complex is governed by aurophilic interactions and can be taken as a model for the arrangement of 1 in self-assembled monolayers on gold.",

keywords = "Aurophilicity, Iron, NEXAFS spectroscopy, S ligands, Thin films",

author = "Tobias Weidner and Nirmalya Ballav and Michael Zharnikov and Andreas Priebe and Long, {Nicholas J.} and J{\"o}rg Maurer and Rainer Winter and Alexander Rothenberger and Dieter Fenske and Dag Rother and Clemens Bruhn and Heinrich Fink and Ulrich Siemeling",

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doi = "10.1002/chem.200701936",

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T1 - Dipodal ferrocene-based adsorbate molecules for self-assembled monolayers on gold

AU - Weidner, Tobias

AU - Ballav, Nirmalya

AU - Zharnikov, Michael

AU - Priebe, Andreas

AU - Long, Nicholas J.

AU - Maurer, Jörg

AU - Winter, Rainer

AU - Rothenberger, Alexander

AU - Fenske, Dieter

AU - Rother, Dag

AU - Bruhn, Clemens

AU - Fink, Heinrich

AU - Siemeling, Ulrich

PY - 2008/5/9

Y1 - 2008/5/9

N2 - 1,1′-Difunctionalised ferrocene derivatives have been studied, which contain groups suitable for chemisorption on gold substrates, namely -NC, -PR2 as well as a range of sulfur-containing units like -NCS, -SR, and thienyl. Thin films on gold have been fabricated from solution with most of these adsorbate species. Film thickness, composition and structure were investigated primarily by X-ray photoelectron and near-edge X-ray absorption fine-structure spectroscopy. The quality of self-assembled monolayers fabricated from 1,1′-diisocyanoferrocene (1) and 1,1′- diisothiocyanatoferrocene (2) turned out to be superior to that of films based on the other adsorbate species investigated. In addition to the surface coordination behaviour of 1 towards gold substrates, relevant aspects of the molecular coordination chemistry of 1 have also been addressed, including the synthesis and characterisation of [(μ-1){Cr(CO)5}2], [Ag2(μ-1)2](NO3)2·H2O and [(μ-1)-(AuCl)2]. The crystal structure of the gold complex is governed by aurophilic interactions and can be taken as a model for the arrangement of 1 in self-assembled monolayers on gold.

AB - 1,1′-Difunctionalised ferrocene derivatives have been studied, which contain groups suitable for chemisorption on gold substrates, namely -NC, -PR2 as well as a range of sulfur-containing units like -NCS, -SR, and thienyl. Thin films on gold have been fabricated from solution with most of these adsorbate species. Film thickness, composition and structure were investigated primarily by X-ray photoelectron and near-edge X-ray absorption fine-structure spectroscopy. The quality of self-assembled monolayers fabricated from 1,1′-diisocyanoferrocene (1) and 1,1′- diisothiocyanatoferrocene (2) turned out to be superior to that of films based on the other adsorbate species investigated. In addition to the surface coordination behaviour of 1 towards gold substrates, relevant aspects of the molecular coordination chemistry of 1 have also been addressed, including the synthesis and characterisation of [(μ-1){Cr(CO)5}2], [Ag2(μ-1)2](NO3)2·H2O and [(μ-1)-(AuCl)2]. The crystal structure of the gold complex is governed by aurophilic interactions and can be taken as a model for the arrangement of 1 in self-assembled monolayers on gold.

KW - Aurophilicity

KW - Iron

KW - NEXAFS spectroscopy

KW - S ligands

KW - Thin films

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Dipodal ferrocene-based adsorbate molecules for self-assembled monolayers on gold

Abstract

Keywords

ASJC Scopus subject areas

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