Self-Assembled Monolayers of Aromatic ω-Aminothiols on Gold: Surface Chemistry and Reactivity

被引：18

作者：

Dietrich, Paul M. ^{[2
]}

Graf, Nora ^{[2
]}

Gross, Thomas ^{[2
]}

Lippitz, Andreas ^{[2
]}

Schuepbach, Bjoern ^{[1
]}

Bashir, Asif ^{[4
]}

Woell, Christof ^{[3
]}

Terfort, Andreas ^{[1
]}

Unger, Wolfgang E. S. ^{[2
]}

机构：

[1] Goethe Univ Frankfurt, Inst Anorgan & Analyt Chem, D-60438 Frankfurt, Germany

[2] BAM Bundesanstalt Mat Forsch & Prufung, D-12203 Berlin, Germany

[3] Ruhr Univ Bochum, Lehrstuhl Phys Chem 1, D-44780 Bochum, Germany

[4] Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany

来源：

LANGMUIR | 2010年 / 26卷 / 06期

关键词：

RAY PHOTOELECTRON-SPECTROSCOPY; BIPHENYL-BASED THIOLS; X-RAY; ELECTRONIC-STRUCTURE; SULFUR; 2P; IMMOBILIZATION; MOLECULES; AU(111); SPECTRA; PHOTOEMISSION;

D O I：

10.1021/la903293b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Amino-terminated self-assembled monolayers on gold substrates were studied by X-ray photoelectron spectroscopy (XPS), near-edge X-ray absorption Fine structure (NEXAFS) measurements,and atomic force microscopy (AFM). Two different omega-amino-4,4'-terphenyl substituted alkanethiols of the general structure H2N-(C6H4)(3)-(CH2)(n)-SH (ATPn) were used: 2-(4 ''-amino-1,1':4',1 ''-terphenyl-4-yl)ethane-1-thiol (n = 2, ATP2) and 3-(4 ''-amino-1,1':4',1 ''-terphenyl-4yl)propane-1-thiol (n = 3, ATP3). Moreover, the addressability of amino groups within the films was investigated by chemical derivatization of ATPn SAMs with 3,5-bis(trifluoromethyl) phenyl isothiocyanate (ITC) forming fluorinated thiourea ATPn-F Films. Evaluation of high-resolution C Is and N Is XPS data revealed successful derivatization of at least 50% of surface amino species. Furthermore, it could be demonstrated by angle-resolved NEXAFS spectroscopy that chemical derivatization with ITC has no noticeable influence on the preferential upright orientation of the molecules in the SAMs.

引用

页码：3949 / 3954

页数：6

共 58 条

[1]

Ade H., 2002, CHEM APPL SYNCHROTRO

[2]

[Anonymous], 1992, HIGH RESOLUTION XPS, DOI DOI 10.1002/ADMA.19930051035

[3] Challenges and breakthroughs in recent research on self-assembly [J].

Ariga, Katsuhiko ;

Hill, Jonathan P. ;

Lee, Michael V. ;

Vinu, Ajayan ;

Charvet, Richard ;

Acharya, Somobrata .

SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2008, 9 (01)

[4] Combined STM and FTIR characterization of terphenylalkanethiol monolayers on Au(111):: Effect of alkyl chain length and deposition temperature [J].

Azzam, W ;

Bashir, A ;

Terfort, A ;

Strunskus, T ;

Wöll, C .

LANGMUIR, 2006, 22 (08) :3647-3655

[5] CARBON-1S NEAR-EDGE-ABSORPTION FINE-STRUCTURE IN GRAPHITE [J].

BATSON, PE .

PHYSICAL REVIEW B, 1993, 48 (04) :2608-2610

[6]

Blanco JLJ, 1999, SYNTHESIS-STUTTGART, P1907

[7] X-ray photoelectron spectroscopy sulfur 2p study of organic thiol and disulfide binding interactions with gold surfaces [J].

Castner, DG ;

Hinds, K ;

Grainger, DW .

LANGMUIR, 1996, 12 (21) :5083-5086

[8] Self-assembly of the 3-aminopropyltrimethoxysilane multilayers on Si and hysteretic current-voltage characteristics [J].

Chauhan, A. K. ;

Aswal, D. K. ;

Koiry, S. P. ;

Gupta, S. K. ;

Yakhmi, J. V. ;

Suergers, C. ;

Guerin, D. ;

Lenfant, S. ;

Vuillaume, D. .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2008, 90 (03) :581-589

[9]

CLARK DT, 1971, CHEM COMMUN, P516

[10] Stress in self-assembled monolayers:: ω-biphenyl alkane thiols on Au(111) [J].

Cyganik, P ;

Buck, M ;

Wilton-Ely, JDET ;

Wöll, C .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (21) :10902-10908

← 1 2 3 4 5 6 →