title: Metal-organic coordination interactions in Fe-terephthalic acid networks on Cu(100).
abstract: Metal-organic coordination interactions are prime candidates for the formation of self-assembled, nanometer-scale periodic networks with room-temperature structural stability. We present X-ray photoelectron spectroscopy measurements of such networks at the Cu(100) surface which provide clear evidence for genuine metal-organic coordination. This is evident as binding energy shifts in the O 1s and Fe 3p photoelectron peaks, corresponding to O and Fe atoms involved in the coordination. Our results provide the first clear evidence for charge-transfer coordination in metal-organic networks at surfaces and demonstrate a well-defined oxidation state for the coordinated Fe ions.
authors.affiliation: Max Planck Institute for Solid State Research, Heisenbergstrasse 1, D-70569 Stuttgart, Germany. tait@fkf.mpg.de
authors.forename: Steven L
authors.initials: SL
authors.lastname: Tait
authors.forename: Yeliang
authors.initials: Y
authors.lastname: Wang
authors.forename: Giovanni
authors.initials: G
authors.lastname: Costantini
authors.forename: Nian
authors.initials: N
authors.lastname: Lin
authors.forename: Alessandro
authors.initials: A
authors.lastname: Baraldi
authors.forename: Friedrich
authors.initials: F
authors.lastname: Esch
authors.forename: Luca
authors.initials: L
authors.lastname: Petaccia
authors.forename: Silvano
authors.initials: S
authors.lastname: Lizzit
authors.forename: Klaus
authors.initials: K
authors.lastname: Kern