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Surface junction effects on the electron conduction of molecular wires.
Surface junction effects on the electron conduction of p-phenylene-bridged bis(terpyridine)iron oligomers terminated with a ferrocene moiety were quantitatively analyzed by employing three differentExpand
Construction of redox- and photo-functional molecular systems on electrode surface for application to molecular devices
Abstract Two systems using bottom-up fabrication of molecular wires on an electrode surface are described. The first system involves films composed of linear and branched wires of metal complexExpand
Synthesis of molecular wires of linear and branched bis(terpyridine)-complex oligomers and electrochemical observation of through-bond redox conduction.
The unique current-versus-time behavior observed under all conditions indicates that electron conduction occurs not by diffusional motion but by successive electron hopping between neighboring redox sites within a molecular wire. Expand
Superior electron-transport ability of pi-conjugated redox molecular wires prepared by the stepwise coordination method on a surface.
The results indicate that facile sequential electron hopping between neighboring metal-complex units within the wire is responsible for the high electron-transport ability. Expand
Stepwise Preparation of Linear π-Conjugated Bis(terpyridine)metal Polymer Chains at Gold Surface
Defect-free structures of a film composed of linear redox polymer chains were prepared using stepwise complexation of Fe(II) and/or Co(II/III) ions with azobenzene-bridged bis(tpy) (tpy = 2,2′:6′,2...
Electron transport dynamics in redox-molecule-terminated branched oligomer wires on Au(111).
A simple electron transport mechanism based on intrawire electron hopping between two adjacent redox-active sites is proposed, and the numerical simulation thereof reproduced the series of "asymmetric" potential-step chronoamperometry results for both linear and branched bis(terpyridine)iron(II) wires. Expand
Bottom-up fabrication of redox-active metal complex oligomer wires on an H-terminated Si(111) surface.
Linear and branched Fe(tpy)(2) complex oligomer wires were quantitatively formed on hydrogen-terminated silicon wafers by means of hydrosilylation of ethynylterpyridine and following stepwiseExpand
Terminal redox-site effect on the long-range electron conduction of Fe(tpy)2 oligomer wires on a gold electrode.
This series of simple but definitive conclusions indicates that the Fe(tpy)2 oligomer wires have reached the stage of being able to precisely design molecular wires to attain desirable single-molecule electron conduction. Expand
Observation of electrochemical single-electron-transfer events of gold nanoparticles in aqueous solution in the presence of both ammonium and sulfonate surface-active agents.
It is known that MNPs smaller than 2.0 nm in diameter have a capacitance CCLU of less than one attofarad per nanoparticle in electrolyte solution, which enables observation of single-electron-transfer events even at room temperature. Expand
Synthesis and Electron Transfer Properties of Metal Complex Oligomer Wires with an Inherent Potential Gradient on Gold Electrode
π-Conjugated bis(terpyridine)metal (M(tpy)2) oligomer wires were prepared by surface coordination programming such that they displayed an inherent potential gradient along the wire through the chainExpand