title: Case studies on the formation of chalcogenide self-assembled monolayers on surfaces and dissociative processes.
abstract: This report examines the assembly of chalcogenide organic molecules on various surfaces, focusing on cases when chemisorption is accompanied by carbon-chalcogen atom-bond scission. In the case of alkane and benzyl chalcogenides, this induces formation of a chalcogenized interface layer. This process can occur during the initial stages of adsorption and then, after passivation of the surface, molecular adsorption can proceed. The characteristics of the chalcogenized interface layer can be significantly different from the metal layer and can affect various properties such as electron conduction. For chalcogenophenes, the carbon-chalcogen atom-bond breaking can lead to opening of the ring and adsorption of an alkene chalcogenide. Such a disruption of the π-electron system affects charge transport along the chains. Awareness about these effects is of importance from the point of view of molecular electronics. We discuss some recent studies based on X-ray photoelectron spectroscopy that shed light on these aspects for a series of such organic molecules.
authors.affiliation: Institut des Sciences Moléculaires d'Orsay, UMR 8214 CNRS-Université Paris Sud, Université Paris-Saclay, F-91405 Orsay, France.|Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, BP 48, F-91192 Gif-sur-Yvette Cedex, France.
authors.forename: Yongfeng
authors.initials: Y
authors.lastname: Tong
authors.affiliation: Institut des Sciences Moléculaires d'Orsay, UMR 8214 CNRS-Université Paris Sud, Université Paris-Saclay, F-91405 Orsay, France.|Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, BP 48, F-91192 Gif-sur-Yvette Cedex, France.|Dipartimento di Ingegneria 'E. Ferrari', Università di Modena e Reggio Emilia, Via Vignolese 905, 41125 Modena, Italy.
authors.forename: Tingming
authors.initials: T
authors.lastname: Jiang
authors.affiliation: Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, BP 48, F-91192 Gif-sur-Yvette Cedex, France.
authors.forename: Azzedine
authors.initials: A
authors.lastname: Bendounan
authors.affiliation: Acharya Institute of Technology, Bangalore 560 107, India.
authors.forename: Makri Nimbegondi Kotresh
authors.initials: MNK
authors.lastname: Harish
authors.affiliation: CNR-IOM, s.s.14, km 163.5 in Area Science Park, 34012 Trieste, Italy.
authors.forename: Angelo
authors.initials: A
authors.lastname: Giglia
authors.affiliation: Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, BP 48, F-91192 Gif-sur-Yvette Cedex, France.
authors.forename: Stefan
authors.initials: S
authors.lastname: Kubsky
authors.affiliation: Synchrotron Soleil, L'Orme des Merisiers, Saint-Aubin, BP 48, F-91192 Gif-sur-Yvette Cedex, France.
authors.forename: Fausto
authors.initials: F
authors.lastname: Sirotti
authors.affiliation: Dipartimento di Ingegneria 'E. Ferrari', Università di Modena e Reggio Emilia, Via Vignolese 905, 41125 Modena, Italy.|CNR-IOM, s.s.14, km 163.5 in Area Science Park, 34012 Trieste, Italy.|Physics Department, University of Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa.
authors.forename: Luca
authors.initials: L
authors.lastname: Pasquali
authors.affiliation: Department of Inorganic and Physical Chemistry, Indian Institute of Science, CV Raman Avenue, Bangalore 560 012, India.
authors.forename: Srinivasan
authors.initials: S
authors.lastname: Sampath
authors.affiliation: Institut des Sciences Moléculaires d'Orsay, UMR 8214 CNRS-Université Paris Sud, Université Paris-Saclay, F-91405 Orsay, France.
authors.forename: Vladimir A
authors.initials: VA
authors.lastname: Esaulov
keywords: copper; nickel; palladium; reactivity; selenol; selenophene; self-assembly; thiol; thiophene