The long-range ordered p(2 × 2) self-assembled monolayer formed by dosing 2-mercaptobenzoxazole (MBO, C7H5NOS) on the Cu(1 0 0) surface at room temperature has been structurally characterised by means of normal incidence X-ray standing wavefield absorption (NIXSW) at both (2 0 0) and (1 1 1) reflections. The results show that the S atom, through which the adsorbed molecular thiolate species bonds to the surface, has an interlayer spacing of 1.33 ± 0.05 Å relative to the extended bulk scatterer planes (2 0 0) parallel to the surface and occupies the four-fold coordinated hollow site, with no evidence of major reconstruction. These results are entirely consistent with previous findings for a number of thiolates formed on (1 0 0) noble metal surfaces. The role of the head-group to surface potential corrugation and intermolecular interactions in determining the adsorption site and ordering of this aromatic molecular adsorbate is discussed.

Self-assembly of an aromatic thiolate on Cu(1 0 0): The local adsorption site / Allegretti, F.; Woodruff, D. P.; Dhanak, V. R.; Mariani, C.; Bussolotti, F.; D'Addato, Sergio. - In: SURFACE SCIENCE. - ISSN 0039-6028. - STAMPA. - 598:1-3(2005), pp. 253-262. [10.1016/j.susc.2005.09.031]

Self-assembly of an aromatic thiolate on Cu(1 0 0): The local adsorption site

D'ADDATO, Sergio
2005

Abstract

The long-range ordered p(2 × 2) self-assembled monolayer formed by dosing 2-mercaptobenzoxazole (MBO, C7H5NOS) on the Cu(1 0 0) surface at room temperature has been structurally characterised by means of normal incidence X-ray standing wavefield absorption (NIXSW) at both (2 0 0) and (1 1 1) reflections. The results show that the S atom, through which the adsorbed molecular thiolate species bonds to the surface, has an interlayer spacing of 1.33 ± 0.05 Å relative to the extended bulk scatterer planes (2 0 0) parallel to the surface and occupies the four-fold coordinated hollow site, with no evidence of major reconstruction. These results are entirely consistent with previous findings for a number of thiolates formed on (1 0 0) noble metal surfaces. The role of the head-group to surface potential corrugation and intermolecular interactions in determining the adsorption site and ordering of this aromatic molecular adsorbate is discussed.
2005
598
1-3
253
262
Self-assembly of an aromatic thiolate on Cu(1 0 0): The local adsorption site / Allegretti, F.; Woodruff, D. P.; Dhanak, V. R.; Mariani, C.; Bussolotti, F.; D'Addato, Sergio. - In: SURFACE SCIENCE. - ISSN 0039-6028. - STAMPA. - 598:1-3(2005), pp. 253-262. [10.1016/j.susc.2005.09.031]
Allegretti, F.; Woodruff, D. P.; Dhanak, V. R.; Mariani, C.; Bussolotti, F.; D'Addato, Sergio
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/451110
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