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Abstract: The adsorption of FePc on the Ag(110) substrate has been investigated by ultraviolet photoelectron spectroscopy (UPS). The emission features corresponding to the adsorbed organic molecules are located at 1.03, 4.04, 6.53 and 9.22eV below the Fermi level. The features shift in binding energy with increasing the thickness of the organic films indicates an interaction between FePc and the Ag(110) substrate. ARUPS measurements suggest that the molecular plane is nearly parallel to the substrate in the case of a monolayer. The theoretical calculation confirms the experimental results and indicates that the top site is the most stable adsorption configuration. [Copyright &y& Elsevier]

Abstract: The ordered adsorption structures of FePc on Cu (100) have been studied by scanning tunneling microscopy (STM) and density functional theory (DFT) calculations. With the deposition rate beyond 0.5 ML per min, the FePc molecules are not deposited dispersedly but are deposited as molecular clusters. After the heat treatment (the temperature higher than 420K), the ordered organic structures of p(5×2) or p(2×5) are obtained. The ordered adsorption structures are in the tilt adsorption model. The FePc molecules in the different domains are aligned along the [011] or [] azimuth, respectively, the molecules are tilted. [Copyright &y& Elsevier]

Abstract: Deposition of fluorene-1-carboxylic acid molecules on Cu(110) surface has been investigated by LEED and STM. By saturating the surface with one monolayer, a (4×4) pg ordered structure is formed judged from the LEED pattern. STM image shows that the ordered structure is formed in small locally areas. STM results indicate that the molecular aromatic plane of FC-1 is parallel to the substrate. First-principle calculations determined the favorable adsorption site. The adsorption structure presents a chiral property. Two FC-1 molecules, in one unit cell, have their carboxylic groups bonded in identical geometry and equivalent orientation, but with opposite chirality. [Copyright &y& Elsevier]