| Title | Reducing the molecule-substrate coupling in C60-based nanostructures by molecular interactions |
| Authors | K. J. Franke, G. Schulze, N. Henningsen, I. Fernandez-Torrente, J. I. Pascual, S. Zarwell, K. Rück-Braun, M. Cobian, and N. Lorente |
| Journal | Phys. Rev. Lett. |
| Vol. 100, 1 2008, pg. 036807 |
| Abstract | Codeposition of C60 and the three-dimensional molecular hydrocarbon 1,3,5,7-tetraphenyladamantane (TPA) on Au(111) leads to the spontaneous formation of molecular nanostructures in which each fullerene is locked into a specific orientation by three surrounding TPA. Scanning tunneling spectroscopy shows that the electronic coupling of C60 with the surface is significantly reduced in these nanostructures, enhancing the free-molecule properties. As evidenced by density functional theory simulations, the nanostructures are stabilized by 18 local electrostatic forces between C60 and TPA, resulting in a lifting of the C60 cage from the surface. |
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