Kinetic modelling shows that layer exchange between the 1 st and 2 nd adsorbate on a surface alters appearance of desorption spectra considerably. Especially, rapid causes broader peak flatter leading edge.

Using the “equivalent cores” approximation in combination with a Born-Haber cycle we calculate core-level binding energies for adsorbates on metal surfaces. Since accurate thermodynamic data are required for the molecule both in the initial and in the final state, we restrict our discussion to adsorbed carbon monoxide, surface species that contain nitrogen and the halogens bromine and iodine. R...

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A combination of cyclic voltammetry and in situ scanning tunneling microscopy was employed to examine the adsorption and phase transition of 1,1'-dibenzyl-4,4'-bipyridinium molecules (abbreviated as DBV(2+)) on a chloride-modified Cu(111) electrode surface. The cyclic voltammogram (CV) of the Cu(111) electrode exposed to a mixture of 10 mM HCl and 0.1 mM DBVCl2 shows three distinguishable pairs...

A density functional theory study accounting for van der Waals interactions reveals the potential of metal surface vacancies as anchor points for the construction of user-defined 2D patterns of adsorbate molecules via a controlled self-assembly process. Vice versa, energetic criteria indicate the formation of regular adsorbate-induced vacancies after adsorbate self-assembly on clean surfaces. T...

INTRODUCTION In recent years optical second-harmonic generation (SHG) has developed into a useful probe of adsorbate molecules on surfaces.", 2 It has been applied to a wide variety of adsorbate-covered surfaces, ranging from single crystals under ultrahigh vacuum conditions3'4 to liquids and amorphous solids under ambient conditions.5-1" From these experiments it is possible to deduce concentr...