Direct STM evidence for Cu-benzoate surface complexes on Cu(1 1 0)

D. B. Dougherty; P. Maksymovych; J. T. Yates

doi:10.1016/j.susc.2006.04.048

Direct STM evidence for Cu-benzoate surface complexes on Cu(1 1 0)

D. B. Dougherty
, P. Maksymovych
, J. T. Yates

Functional Atomic Force Microscopy Group

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

19 Scopus citations

Abstract

The chemisorption of benzoate on a Cu(1 1 0) crystal at room temperature was studied using low temperature scanning tunneling microscopy. STM images, obtained at 5 K for low benzoate coverage, show isolated surface species that consist of a single Cu adatom stabilizing two benzoate molecules in a flat orientation. These species are discussed in relation to other known metal-organic surface compounds. At higher coverage the fenced((4, - 3; 1, 5))overlayer, called the α-phase, was also observed at 5 K and found to contain features attributable to two Cu adatoms associated with two pairs of non-equivalent benzoate species. The observed topographic features are used to suggest refinements of the structural model of the ordered α-phase overlayer.

Original language	English
Pages (from-to)	4484-4491
Number of pages	8
Journal	Surface Science
Volume	600
Issue number	19
DOIs	https://doi.org/10.1016/j.susc.2006.04.048
State	Published - Oct 1 2006

Funding

This work has benefited from discussions with Dan Sorescu. Financial support was provided by the W.M. Keck Foundation through the W.M. Keck Center for Nanoscale Molecular Electronics as well as a grant from NEDO (Japan). We also thank Professors N.V. Richardson and B.G. Frederick for their enlightening comments.

Keywords

Benzoate
Carboxylic acid
Cu adatoms
Scanning tunneling microscopy
Supramolecular chemistry

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10.1016/j.susc.2006.04.048

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title = "Direct STM evidence for Cu-benzoate surface complexes on Cu(1 1 0)",

abstract = "The chemisorption of benzoate on a Cu(1 1 0) crystal at room temperature was studied using low temperature scanning tunneling microscopy. STM images, obtained at 5 K for low benzoate coverage, show isolated surface species that consist of a single Cu adatom stabilizing two benzoate molecules in a flat orientation. These species are discussed in relation to other known metal-organic surface compounds. At higher coverage the fenced((4, - 3; 1, 5))overlayer, called the α-phase, was also observed at 5 K and found to contain features attributable to two Cu adatoms associated with two pairs of non-equivalent benzoate species. The observed topographic features are used to suggest refinements of the structural model of the ordered α-phase overlayer.",

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T1 - Direct STM evidence for Cu-benzoate surface complexes on Cu(1 1 0)

AU - Dougherty, D. B.

AU - Maksymovych, P.

AU - Yates, J. T.

PY - 2006/10/1

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N2 - The chemisorption of benzoate on a Cu(1 1 0) crystal at room temperature was studied using low temperature scanning tunneling microscopy. STM images, obtained at 5 K for low benzoate coverage, show isolated surface species that consist of a single Cu adatom stabilizing two benzoate molecules in a flat orientation. These species are discussed in relation to other known metal-organic surface compounds. At higher coverage the fenced((4, - 3; 1, 5))overlayer, called the α-phase, was also observed at 5 K and found to contain features attributable to two Cu adatoms associated with two pairs of non-equivalent benzoate species. The observed topographic features are used to suggest refinements of the structural model of the ordered α-phase overlayer.

AB - The chemisorption of benzoate on a Cu(1 1 0) crystal at room temperature was studied using low temperature scanning tunneling microscopy. STM images, obtained at 5 K for low benzoate coverage, show isolated surface species that consist of a single Cu adatom stabilizing two benzoate molecules in a flat orientation. These species are discussed in relation to other known metal-organic surface compounds. At higher coverage the fenced((4, - 3; 1, 5))overlayer, called the α-phase, was also observed at 5 K and found to contain features attributable to two Cu adatoms associated with two pairs of non-equivalent benzoate species. The observed topographic features are used to suggest refinements of the structural model of the ordered α-phase overlayer.

KW - Benzoate

KW - Carboxylic acid

KW - Cu adatoms

KW - Scanning tunneling microscopy

KW - Supramolecular chemistry

UR - https://www.scopus.com/pages/publications/33749064154

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DO - 10.1016/j.susc.2006.04.048

M3 - Article

AN - SCOPUS:33749064154

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VL - 600

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EP - 4491

JO - Surface Science

JF - Surface Science

IS - 19

ER -

Direct STM evidence for Cu-benzoate surface complexes on Cu(1 1 0)

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