nl060292n_si_002.pdf (97.9 kB)
Download file

Single-Molecule Dynamics in a Self-Assembled 2D Molecular Sieve

Download (97.9 kB)
journal contribution
posted on 12.07.2006, 00:00 by Guillaume Schull, Ludovic Douillard, Céline Fiorini-Debuisschert, Fabrice Charra, Fabrice Mathevet, David Kreher, André-Jean Attias
A two-dimensional molecular sieve has been realized. It consists of a host matrix of molecularly engineered building blocks self-assembled at the liquid−solid interface. The simultaneous size- and shape-dependent dynamics of different guest molecules is observed in situ, in real time with submolecular resolution using a scanning tunneling microscope both at the liquid−solid interface and under vacuum. The temperature-dependent dynamics reveals that the diffusion proceeds through thermally activated channeling between single-molecule surface cavities.