Single-molecule dynamics in a self-assembled 2D molecular sieve.
basic_science · Level V
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- Record sourced from PubMed, PMID 16834411.
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Abstract
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.
Medical subject headings
- Nanotechnology
- Stilbenes