Chain length dependence of adsorption structure of COOH-terminated alkanethiol SAMs on Au(111)

Ito, Eisuke; Konno, Kaoru; Noh, Jaegeun; Kanai, Kaname; Ouchi, Yukio; Seki, Kazuhiko; Hara, Masahiko

doi:10.1016/j.apsusc.2004.10.126

Cited by 46 publications

(56 citation statements)

References 7 publications

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“…The peak of the modified surface in S 2p region was observed around 162-163 eV, which is close to the reported values (ca. 162 eV) for S-Au bonds in usual alkanethiolate SAMs on a gold surface [22][23][24][25][26].…”

Section: Methodsmentioning

confidence: 98%

Construction of self-assembled monolayer terminated with N-heterocyclic carbene–rhodium(I) complex moiety

et al. 2007

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Section: Methodsmentioning

confidence: 98%

Construction of self-assembled monolayer terminated with N-heterocyclic carbene–rhodium(I) complex moiety

et al. 2007

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“…4 The product was purified by column chromatography and confirmed by 1 H NMR analysis. The Au(111) substrates were prepared by the thermal evaporation of gold onto freshly cleaved mica sheets prebaked at 330 o C with a base pressure of ~10 -7 -10 -8 Torr.…”

Section: Methodsmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8][9][10][11][12] Although organic thiols have been the most popular precursors for the preparation of SAMs, they tend to oxidize to disulfides and/or other compounds, which can hamper the formation of two-dimensional (2D) ordered SAMs in solution. 13 To avoid this problem, other precursors with better chemical stability to oxidation have been developed including acetyl protected thiols, [13][14][15][16] organic thiosulfates, 17 isocyanides, 18 and sulfides, 19 However, the SAMs formed by these alternative sulfur sources on gold surfaces have poor structural order and many structural defects, and surface cleanness and SAM preparation conditions also strongly affect the 2D SAM formation and structural order.…”

Section: Introductionmentioning

confidence: 99%

Coexistence of Closely Packed c(4 × 2) and Striped Phases in Self-Assembled Monolayers of Decylthiocyanates on Au(111)

Choi¹,

Kang²,

Choi³

et al. 2010

Bulletin of the Korean Chemical Society

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Decylthiocyanate (DTC) self-assembled monolayers (SAMs) on Au(111) were prepared by solution and vapor phase deposition methods at 50 o C for 24 h. The formation and surface structure of DTC SAMs were examined using scanning tunneling microscopy (STM). STM imaging revealed that DTC SAMs formed in 1 mM ethanol solution at 50 o C were composed of small ordered domains with lateral dimensions of a few nanometers and disordered phases, whereas DTC SAMs formed in the vapor phase at 50 o C contained two ordered phases: a closely packed c(4 × 2) superlattice and a striped phase with an interstripe spacing of 2.6 -2.8 nm. It was also found that the ordered domain and vacancy island formation for DTC SAMs on Au(111) differs significantly from that of decanethiol SAMs, suggesting that adsorption mechanism is different from each other. From this study, it was confirmed that DTC SAMs with a high degree of structural order can be obtained by vapor phase deposition.

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“…It was reported that thiophene (T) and its derivatives can form well-ordered self-assembled monolayers (SAMs) on Au surfaces through the S-Au chemical bond [16,17], moreover, scanning tunneling microscopy and carbon K-edge near edge X-ray absorption fine structure spectroscopy revealed that there exists the strong interaction between p electrons and Au surfaces during the selfassembly process of thiophene molecules [18,19]. These results enlighten us that thiophene groups are a feasible choice used as a kind of functional groups for polysilanes.…”

Section: Introductionmentioning

confidence: 99%

Theoretical study on a new kind of thienyl-functionalized polysilane

Ding

Feng

et al. 2010

Struct Chem

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A series of theoretical calculations were performed on thienyl-functionalized polysilanes in order to understand their geometries, excited state spectra, energy band structures, and adsorption stability onto Au (111) surfaces. The thienyl functionalization causes a significant red-shift of the electronic spectra of the oligosilanes, which is due to the maximum absorption energy resulting from r ? p* transition in oligo(methylthienylsilane) much lower than that from r ? r* transition, and a great decrease of the r ? r* transition energy in thienyl endfunctionalized oligo(dimethylsilane). The thienyl substitution exerts a small effect on the band gap of the polysilane, and yet disturbs slightly the r electronic delocalization. There exists a stable adsorption between thienyl-functionalized polysilanes and Au (111) surfaces through nonbonding interaction of thiophenes with Au.

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Chain length dependence of adsorption structure of COOH-terminated alkanethiol SAMs on Au(111)

Cited by 46 publications

References 7 publications

Construction of self-assembled monolayer terminated with N-heterocyclic carbene–rhodium(I) complex moiety

Construction of self-assembled monolayer terminated with N-heterocyclic carbene–rhodium(I) complex moiety

Coexistence of Closely Packed c(4 × 2) and Striped Phases in Self-Assembled Monolayers of Decylthiocyanates on Au(111)

Theoretical study on a new kind of thienyl-functionalized polysilane

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