On the importance of purity for the formation of self-assembled monolayers from thiocyanates

Cai Shen; Manfred Buck; James D. E. T. Wilton-Ely; Tobias Weidner; Michael Zharnikov

doi:10.1021/la8004272

On the importance of purity for the formation of self-assembled monolayers from thiocyanates

Cai Shen, Manfred Buck, James D. E. T. Wilton-Ely, Tobias Weidner, Michael Zharnikov

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

Abstract

Assembly of dodecyl thiocyanate (C12SCN) from ethanol solution onto Au(111)/mica substrates was investigated by scanning tunneling microscopy (STM), near edge X-ray absorption fine structure spectroscopy (NEXAFS), X-ray photoelectron spectroscopy (XPS), and infrared reflection - absorption spectroscopy (IRRAS). Contrary to previous reports, thiolate monolayers formed by cleavage of the S-CN bond can be obtained whose quality is at least as good as that of self-assembled monolayers (SAMS) formed directly from the thiol analogue of C12SCN, dodecanethiol (C12SH). However, the achievable quality is strikingly dependent on the purity of the thiocyanate with even low levels of contamination impeding the formation of structurally well-defined monolayers..

Original language	English
Pages (from-to)	6609-6615
Number of pages	7
Journal	Langmuir
Volume	24
Issue number	13
DOIs	https://doi.org/10.1021/la8004272
Publication status	Published - 1 Jul 2008

Keywords

RAY-ABSORPTION SPECTRA
STRUCTURAL-CHARACTERIZATION
ORGANOSULFUR MONOLAYERS
ORGANIC THIOCYANATES
GOLD SURFACES
THIOLS
AU(111)
SPECTROSCOPY
DECANETHIOL
ALKANES

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10.1021/la8004272

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@article{410a98b56cdf44e88ec305bd58f616b7,

title = "On the importance of purity for the formation of self-assembled monolayers from thiocyanates",

abstract = "Assembly of dodecyl thiocyanate (C12SCN) from ethanol solution onto Au(111)/mica substrates was investigated by scanning tunneling microscopy (STM), near edge X-ray absorption fine structure spectroscopy (NEXAFS), X-ray photoelectron spectroscopy (XPS), and infrared reflection - absorption spectroscopy (IRRAS). Contrary to previous reports, thiolate monolayers formed by cleavage of the S-CN bond can be obtained whose quality is at least as good as that of self-assembled monolayers (SAMS) formed directly from the thiol analogue of C12SCN, dodecanethiol (C12SH). However, the achievable quality is strikingly dependent on the purity of the thiocyanate with even low levels of contamination impeding the formation of structurally well-defined monolayers..",

keywords = "RAY-ABSORPTION SPECTRA, STRUCTURAL-CHARACTERIZATION, ORGANOSULFUR MONOLAYERS, ORGANIC THIOCYANATES, GOLD SURFACES, THIOLS, AU(111), SPECTROSCOPY, DECANETHIOL, ALKANES",

author = "Cai Shen and Manfred Buck and Wilton-Ely, {James D. E. T.} and Tobias Weidner and Michael Zharnikov",

year = "2008",

month = jul,

day = "1",

doi = "10.1021/la8004272",

language = "English",

volume = "24",

pages = "6609--6615",

journal = "Langmuir",

issn = "0743-7463",

publisher = "American Chemical Society (ACS)",

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TY - JOUR

T1 - On the importance of purity for the formation of self-assembled monolayers from thiocyanates

AU - Shen, Cai

AU - Buck, Manfred

AU - Wilton-Ely, James D. E. T.

AU - Weidner, Tobias

AU - Zharnikov, Michael

PY - 2008/7/1

Y1 - 2008/7/1

N2 - Assembly of dodecyl thiocyanate (C12SCN) from ethanol solution onto Au(111)/mica substrates was investigated by scanning tunneling microscopy (STM), near edge X-ray absorption fine structure spectroscopy (NEXAFS), X-ray photoelectron spectroscopy (XPS), and infrared reflection - absorption spectroscopy (IRRAS). Contrary to previous reports, thiolate monolayers formed by cleavage of the S-CN bond can be obtained whose quality is at least as good as that of self-assembled monolayers (SAMS) formed directly from the thiol analogue of C12SCN, dodecanethiol (C12SH). However, the achievable quality is strikingly dependent on the purity of the thiocyanate with even low levels of contamination impeding the formation of structurally well-defined monolayers..

AB - Assembly of dodecyl thiocyanate (C12SCN) from ethanol solution onto Au(111)/mica substrates was investigated by scanning tunneling microscopy (STM), near edge X-ray absorption fine structure spectroscopy (NEXAFS), X-ray photoelectron spectroscopy (XPS), and infrared reflection - absorption spectroscopy (IRRAS). Contrary to previous reports, thiolate monolayers formed by cleavage of the S-CN bond can be obtained whose quality is at least as good as that of self-assembled monolayers (SAMS) formed directly from the thiol analogue of C12SCN, dodecanethiol (C12SH). However, the achievable quality is strikingly dependent on the purity of the thiocyanate with even low levels of contamination impeding the formation of structurally well-defined monolayers..

KW - RAY-ABSORPTION SPECTRA

KW - STRUCTURAL-CHARACTERIZATION

KW - ORGANOSULFUR MONOLAYERS

KW - ORGANIC THIOCYANATES

KW - GOLD SURFACES

KW - THIOLS

KW - AU(111)

KW - SPECTROSCOPY

KW - DECANETHIOL

KW - ALKANES

UR - http://www.scopus.com/inward/record.url?scp=47349099672&partnerID=8YFLogxK

U2 - 10.1021/la8004272

DO - 10.1021/la8004272

M3 - Article

SN - 0743-7463

VL - 24

SP - 6609

EP - 6615

JO - Langmuir

JF - Langmuir

IS - 13

ER -

On the importance of purity for the formation of self-assembled monolayers from thiocyanates

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Keywords

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Micro-and Nanoelectrode structure: Micro and nanoelectrode structures by template directed electrodeposition

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On the importance of purity for the formation of self-assembled monolayers from thiocyanates

Abstract

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Micro-and Nanoelectrode structure: Micro and nanoelectrode structures by template directed electrodeposition

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