Observation of Single Dinuclear Metal-Complex Molecules Using Scanning Tunneling Microscopy

We report a scanning tunneling microscopy (STM) investigation of a dinuclear organometallic molecule, trans-[Cl(dppe)2Ru(C≡C)6Ru(dppe)2Cl] (Ru2), absorbed on a Au(111) surface; this molecule is a potential candidate for use in molecular quantum-dot cellular automata (QCA) devices. Isolated Ru2 molec...

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Bibliographic Details
Published in:The journal of physical chemistry. B 2006-11, Vol.110 (43), p.21846-21849
Main Authors: Wei, Zhongqing, Guo, Song, Kandel, S. Alex
Format: Article
Language:English
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Summary:We report a scanning tunneling microscopy (STM) investigation of a dinuclear organometallic molecule, trans-[Cl(dppe)2Ru(C≡C)6Ru(dppe)2Cl] (Ru2), absorbed on a Au(111) surface; this molecule is a potential candidate for use in molecular quantum-dot cellular automata (QCA) devices. Isolated Ru2 molecules were observed under ultra-high-vacuum conditions. Submolecular structure was clearly discernible in the STM images, with a bright feature corresponding to each of the two Ru−ligand complexes within the Ru2 molecule. Rotation and translation of the Ru2 molecules were observed to be induced by the STM tip under some tunneling conditions.
ISSN:1520-6106
1520-5207
DOI:10.1021/jp0636928