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Effects of Electrode-Molecule Binding and Junction Geometry on the Single-Molecule Conductance of
Ross Davidson1, Oday A Al-Owaedi2,3, David C Milan4
1Department of Chemistry, Durham University , South Rd, Durham, DH1 3LE, United Kingdom.
Abstract:
The single molecule conductances of a series of bis-2,2':6',2″-terpyridine complexes featuring Ru(II), Fe(II), and Co(II) metal ions and trimethylsilylethynyl (Me3SiC≡C-) or thiomethyl (MeS-) surface contact groups have been determined. In the absence of electrochemical gating, these complexes behave as tunneling barriers, with conductance properties determined more by the strength of the electrode-molecule contact and the structure of the "linker" than the nature of the metal-ion or redox properties of the complex.
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