Structure of CH3(CH2)17SH Self-Assembled on the Ag(111) Surface: An Incommensurate Monolayer

P. Fenter; P. Eisenberger; Jun Li; N. Camillone; S. Bernasek; G. Scoles; T. A. Ramanarayanan; K. S. Liang

doi:10.1021/la00058a008

Structure of CH₃(CH₂)₁₇SH Self-Assembled on the Ag(111) Surface: An Incommensurate Monolayer

P. Fenter, P. Eisenberger, Jun Li, N. Camillone, S. Bernasek, G. Scoles, T. A. Ramanarayanan, K. S. Liang

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

189 Scopus citations

Abstract

We describe the first experimental study of the molecular structure of the self-assembled monolayer of CH₃(CH₂)₁₇SH formed on the Ag(111) surface. Using both low-energy He diffraction and grazing incidence X-ray diffraction, we show that the monolayer formed on Ag is both incommensurate and rotated with respect to the Ag lattice, with a lattice spacing which is very similar to n-alkane chains in bulk hydrocarbon crystals. Lastly, by comparing the results of the X-ray and He diffraction experiments on the same sample, we observe that the outermost surface of the monolayer is less ordered than the interior.

Original language	English (US)
Pages (from-to)	2013-2016
Number of pages	4
Journal	Langmuir
Volume	7
Issue number	10
DOIs	https://doi.org/10.1021/la00058a008
State	Published - Oct 1 1991
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/la00058a008

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title = "Structure of CH3(CH2)17SH Self-Assembled on the Ag(111) Surface: An Incommensurate Monolayer",

abstract = "We describe the first experimental study of the molecular structure of the self-assembled monolayer of CH3(CH2)17SH formed on the Ag(111) surface. Using both low-energy He diffraction and grazing incidence X-ray diffraction, we show that the monolayer formed on Ag is both incommensurate and rotated with respect to the Ag lattice, with a lattice spacing which is very similar to n-alkane chains in bulk hydrocarbon crystals. Lastly, by comparing the results of the X-ray and He diffraction experiments on the same sample, we observe that the outermost surface of the monolayer is less ordered than the interior.",

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T2 - An Incommensurate Monolayer

AU - Fenter, P.

AU - Eisenberger, P.

AU - Li, Jun

AU - Camillone, N.

AU - Bernasek, S.

AU - Scoles, G.

AU - Ramanarayanan, T. A.

AU - Liang, K. S.

PY - 1991/10/1

Y1 - 1991/10/1

N2 - We describe the first experimental study of the molecular structure of the self-assembled monolayer of CH3(CH2)17SH formed on the Ag(111) surface. Using both low-energy He diffraction and grazing incidence X-ray diffraction, we show that the monolayer formed on Ag is both incommensurate and rotated with respect to the Ag lattice, with a lattice spacing which is very similar to n-alkane chains in bulk hydrocarbon crystals. Lastly, by comparing the results of the X-ray and He diffraction experiments on the same sample, we observe that the outermost surface of the monolayer is less ordered than the interior.

AB - We describe the first experimental study of the molecular structure of the self-assembled monolayer of CH3(CH2)17SH formed on the Ag(111) surface. Using both low-energy He diffraction and grazing incidence X-ray diffraction, we show that the monolayer formed on Ag is both incommensurate and rotated with respect to the Ag lattice, with a lattice spacing which is very similar to n-alkane chains in bulk hydrocarbon crystals. Lastly, by comparing the results of the X-ray and He diffraction experiments on the same sample, we observe that the outermost surface of the monolayer is less ordered than the interior.

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Structure of CH₃(CH₂)₁₇SH Self-Assembled on the Ag(111) Surface: An Incommensurate Monolayer

Abstract

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