Molecular Recognition Effects in the Surface Diffusion of Large Organic Molecules: The Case of Violet Lander

Details Molecular Recognition Effects in the Surface Diffusion of Large Organic Molecules: The Case of Violet Lander Molecular Recognition Effects in the Surface Diffusion of Large Organic Molecules: The Case of Violet Lander

2007-08-21

arxiv.org/abs/0708.2915v1

Physics

Condensed Matter

Materials Science

6 pages, 9 figures. This is an expanded version of our previous work published in Nature Materials v3, page 779, 2004

Scientific paper

10.1038/nmat1243

Violet Lander (VL) (C108H104) is a large organic molecule that when deposited on Cu (110) exhibited lock-and-key like behavior (Otero et al., Nature Mater. 3, 779 (2004)). In this work we report on a detailed fully atomistic molecular dynamics study of this phenomenon. Our results show that it has its physical basis in the interplay of the molecular hydrogens and the Cu(110) atomic spacing, which is a direct consequence of an accidental commensurability between molecule and surface dimensions. This knowledge could be used to engineer new molecules capable of displaying lock-and-key behavior with new potential applications in nanotechology.

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