Probing molecular orientation in corrosion inhibition via a NEXAFS study of benzotriazole and related molecules on Cu(100)

J. F. Walsh; H. S. Dhariwal; A. Gutiérrez-Sosa; P. Finetti; C. A. Muryn; N. B. Brookes; R. J. Oldman; G. Thornton

doi:10.1016/S0039-6028(98)00604-9

Probing molecular orientation in corrosion inhibition via a NEXAFS study of benzotriazole and related molecules on Cu(100)

J. F. Walsh, H. S. Dhariwal, A. Gutiérrez-Sosa, P. Finetti, C. A. Muryn, N. B. Brookes, R. J. Oldman, G. Thornton^*

^*Corresponding author for this work

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

Abstract

The orientation of benzotriazole on Cu(100) has been studied using near-edge X-ray absorption fine structure (NEXAFS) at the C and N K-edges. At submonolayer coverage, benzotriazole (C₆H₅N₃) is found to adsorb with the molecular plane close to perpendicular to the Cu(100) surface, as indicated by the polarization dependence of the π* features. The orientation of benzimidazole (C₇H₆N₂) and 1-methyl benzotriazole (C₇H₇N₃) on Cu(100) have also been studied, and are found not to be oriented at submonolayer coverage. This, along with the orientation at multilayer coverage suggests a specific first-bonding-layer origin for the corrosion inhibitor properties of benzotriazole.

Original language	English
Pages (from-to)	423-432
Number of pages	10
Journal	Surface Science
Volume	415
Issue number	3
DOIs	https://doi.org/10.1016/S0039-6028(98)00604-9
Publication status	Published - 9 Oct 1998

Keywords

1-Methyl benzotriazole
Benzimidazole
Benzotriazole
Chemisorption
Copper
Corrosion
Near edge extended X-ray fine structure (NEXAFS)

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10.1016/S0039-6028(98)00604-9

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title = "Probing molecular orientation in corrosion inhibition via a NEXAFS study of benzotriazole and related molecules on Cu(100)",

abstract = "The orientation of benzotriazole on Cu(100) has been studied using near-edge X-ray absorption fine structure (NEXAFS) at the C and N K-edges. At submonolayer coverage, benzotriazole (C6H5N3) is found to adsorb with the molecular plane close to perpendicular to the Cu(100) surface, as indicated by the polarization dependence of the π* features. The orientation of benzimidazole (C7H6N2) and 1-methyl benzotriazole (C7H7N3) on Cu(100) have also been studied, and are found not to be oriented at submonolayer coverage. This, along with the orientation at multilayer coverage suggests a specific first-bonding-layer origin for the corrosion inhibitor properties of benzotriazole.",

keywords = "1-Methyl benzotriazole, Benzimidazole, Benzotriazole, Chemisorption, Copper, Corrosion, Near edge extended X-ray fine structure (NEXAFS)",

author = "Walsh, {J. F.} and Dhariwal, {H. S.} and A. Guti{\'e}rrez-Sosa and P. Finetti and Muryn, {C. A.} and Brookes, {N. B.} and Oldman, {R. J.} and G. Thornton",

year = "1998",

month = oct,

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doi = "10.1016/S0039-6028(98)00604-9",

language = "English",

volume = "415",

pages = "423--432",

journal = "Surface Science",

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T1 - Probing molecular orientation in corrosion inhibition via a NEXAFS study of benzotriazole and related molecules on Cu(100)

AU - Walsh, J. F.

AU - Dhariwal, H. S.

AU - Gutiérrez-Sosa, A.

AU - Finetti, P.

AU - Muryn, C. A.

AU - Brookes, N. B.

AU - Oldman, R. J.

AU - Thornton, G.

PY - 1998/10/9

Y1 - 1998/10/9

N2 - The orientation of benzotriazole on Cu(100) has been studied using near-edge X-ray absorption fine structure (NEXAFS) at the C and N K-edges. At submonolayer coverage, benzotriazole (C6H5N3) is found to adsorb with the molecular plane close to perpendicular to the Cu(100) surface, as indicated by the polarization dependence of the π* features. The orientation of benzimidazole (C7H6N2) and 1-methyl benzotriazole (C7H7N3) on Cu(100) have also been studied, and are found not to be oriented at submonolayer coverage. This, along with the orientation at multilayer coverage suggests a specific first-bonding-layer origin for the corrosion inhibitor properties of benzotriazole.

AB - The orientation of benzotriazole on Cu(100) has been studied using near-edge X-ray absorption fine structure (NEXAFS) at the C and N K-edges. At submonolayer coverage, benzotriazole (C6H5N3) is found to adsorb with the molecular plane close to perpendicular to the Cu(100) surface, as indicated by the polarization dependence of the π* features. The orientation of benzimidazole (C7H6N2) and 1-methyl benzotriazole (C7H7N3) on Cu(100) have also been studied, and are found not to be oriented at submonolayer coverage. This, along with the orientation at multilayer coverage suggests a specific first-bonding-layer origin for the corrosion inhibitor properties of benzotriazole.

KW - 1-Methyl benzotriazole

KW - Benzimidazole

KW - Benzotriazole

KW - Chemisorption

KW - Copper

KW - Corrosion

KW - Near edge extended X-ray fine structure (NEXAFS)

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U2 - 10.1016/S0039-6028(98)00604-9

DO - 10.1016/S0039-6028(98)00604-9

M3 - Article

AN - SCOPUS:0032500413

SN - 0039-6028

VL - 415

SP - 423

EP - 432

JO - Surface Science

JF - Surface Science

IS - 3

ER -

Probing molecular orientation in corrosion inhibition via a NEXAFS study of benzotriazole and related molecules on Cu(100)

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Keywords

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