Guanine- and potassium-based two-dimensional coordination network self-assembled on Au(111) |
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Authors: | Xu Wei Wang Jian-guo Yu Miao Laegsgaard Erik Stensgaard Ivan Linderoth Trolle R Hammer Bjørk Wang Chen Besenbacher Flemming |
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Affiliation: | Interdisciplinary Nanoscience Center (iNANO), Center for DNA Nanotechnology (CDNA), and Department of Physics and Astronomy, University of Aarhus, Ny Munkegade, DK 8000 Aarhus C, Denmark. xuwei@tongji.edu.cn |
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Abstract: | In this study, through the choice of the well-known G-K biological coordination system, bioligand-alkali metal coordination has for the first time been brought onto an inert Au(111) surface. Using the interplay between high-resolution scanning tunneling microscopy and density functional theory calculations, we show that the mobile G molecules on Au(111) can effectively coordinate with the K atoms, resulting in a metallosupramolecular porous network that is stabilized by a delicate balance between hydrogen bonding and metal-organic coordination. |
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