title: Adsorption and dehydrogenation of tetrahydroxybenzene on Cu(111).
abstract: Adsorption of tetrahydroxybenzene (THB) on Cu(111) and Au(111) surfaces is studied using a combination of STM, XPS, and DFT. THB is deposited intact, but on Cu(111) it undergoes gradual dehydrogenation of the hydroxyl groups as a function of substrate temperature, yielding a pure dihydroxy-benzoquinone phase at 370 K. Subtle changes to the adsorption structure upon dehydrogenation are explained from differences in molecule-surface bonding.
authors.affiliation: Sino-Danish Center for Molecular Nanostructures on Surfaces, Interdisciplinary Nanoscience Center (iNANO) and Department of Physics and Astronomy, Aarhus University, Aarhus C, Denmark. trolle@inano.au.dk.
authors.forename: Fabian
authors.initials: F
authors.lastname: Bebensee
authors.forename: Katrine
authors.initials: K
authors.lastname: Svane
authors.forename: Christian
authors.initials: C
authors.lastname: Bombis
authors.forename: Federico
authors.initials: F
authors.lastname: Masini
authors.forename: Svetlana
authors.initials: S
authors.lastname: Klyatskaya
authors.forename: Flemming
authors.initials: F
authors.lastname: Besenbacher
authors.forename: Mario
authors.initials: M
authors.lastname: Ruben
authors.forename: Bjørk
authors.initials: B
authors.lastname: Hammer
authors.forename: Trolle
authors.initials: T
authors.lastname: Linderoth