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: Journal Publication › Article › peer-review

33 Citations (Scopus)

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
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

Access to Document

10.1021/la8004272

Cite this

@article{81f5313d31c64811a1c56c006f700634,

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.",

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",

number = "13",

}

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.

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

U2 - 10.1021/la8004272

DO - 10.1021/la8004272

M3 - Article

C2 - 18503286

AN - SCOPUS:47349099672

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

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this