Title

A Molecule Carrier

Abstract

We found that anthraquinone diffuses along a straight line across a flat, highly symmetric Cu(111) surface. It can also reversibly attach one or two CO2 molecules as "cargo" and act as a "molecule carrier," thereby transforming the diffusive behavior of the CO2 molecules from isotropic to linear. Density functional theory calculations indicated a substrate-mediated attraction of ∼0.12 electron volt (eV). Scanning tunneling microscopy revealed individual steps of the molecular complex on its diffusion pathway, with increases of ∼0.03 and ∼0.02 eV in the diffusion barrier upon attachment of the first and second CO2 molecule, respectively.

Publication Date

3-9-2007

Publication Title

Science

Volume

315

Issue

5817

Number of Pages

1391-1393

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1126/science.1135302

Socpus ID

33947161016 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/33947161016

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