Acetylene C2H2 Adsorbed onto MgO(001): Structure and Thermodynamics-Reference-Cited by-同舟云学术

Acetylene C2H2 Adsorbed onto MgO(001): Structure and Thermodynamics

Published:1998-02 Issue:01 Volume:05 Page:353-357
ISSN:0218-625X
Container-title:Surface Review and Letters
language:en
Short-container-title:Surf. Rev. Lett.

Author:

Ferry D.¹,Suzanne J.¹,Hoang P. N. M.²,Girardet C.²

Affiliation:

1. CRMC2-CNRS, (Also associated with the Universities of Aix-Marseille 2 and 3.) Départment de Physique, Faculté des Sciences de Luminy, Case 901, 13288 Marseille Cedex 9, France

2. Laboratoire de Physique Moléculaire (URA-CNRS 772), Faculté des Sciences La Bouloie, Université de Franche-Comté, 25030 Besançon Cedex, France

Abstract

Structural and thermodynamical LEED experiments were performed on MgO(001) single crystal cleaved in situ under ultrahigh vacuum conditions within the temperature range of 40–94 K. We observe a commensurate (2 × 2) herringbone structure containing two molecules and having two glide planes. The isosteric heat of adsorption Qst = 6.9 ± 0.4 kcal · mole -1 and lateral interoction energy Q// = 3.1 ± 0.4 kcal · mole -1 have been measured and compared with semiempirical potential calculations. The influence of the molecular motions on the calculated isosteric heat of adsorption is evaluated to take into account temperature effects.

Publisher

World Scientific Pub Co Pte Lt

Subject

Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces,Condensed Matter Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218625X98000657

Reference15 articles.

1. The adsorption of acetylene on the (111) crystal face of platinum: detection of two chemically different adsorption states by low-energy electron diffraction

2. Chemisorption of C2H2 on Pd(111) and Pt(111): formation of a thermally activated olefinic surface complex

3. The surface structure and bonding of (2 × 2) acetylene overlayers on platinum (111): LEED intensity analysis

4. The local adsorption structure of acetylene on Cu(lll)

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3. 3.6.1 Adsorption of molecules on MgO;Adsorbed Layers on Surfaces

4. 3.6.1.10 References for 3.6.1.;Adsorbed Layers on Surfaces