Quinones have long been used as redox-active organic molecules. They are excellent candidates for functional redox structures at surfaces because of their strong oxidative capabilities and their flat structure. These properties served as building blocks for the development of two new ligands, tetra-aza-anthraquinone (HTAAQ) and tetraethyltetra-aza-anthraquinone (EtTAAQ). Each ligand was vapor deposited to the Au(100) surface and analyzed by X-ray photoelectron spectroscopy (XPS) and scanning tunneling microscopy (STM). STM shows the self-assembly of each molecule into 2D islands, but with different behavior and packing depending on the molecule. The molecular packing of the EtTAAQ shows a basketweave-like tiling pattern, with electronegative oxygen sides interacting with the relatively electropositive methylene hydrogen ends of neighboring molecules. By co-deposition of V metal onto the surface with the ligands, oxidation of V has been observed by XPS. Structural analysis of the metal-organic complex product is ongoing, as are studies of the chemical activity of the metal centers.<br/>

Molecular self-assembly and redox assembly of quinone derivatives on Au(100

254th National Meeting (2017)

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