Effects of Electrode−Molecule Binding and Junction Geometry on
the Single-Molecule Conductance of bis-2,2′:6′,2″-Terpyridine-based
Complexes
Author(s):
Ross Davidson, Oday A. Al-Owaedi, David C. Milan, Qiang Zeng, Joanne Tory, Frantisek Hartl, Simon J. Higgins, Richard J. Nichols, Colin J. Lambert, Paul J. Low
Journal:
Inorganic Chemistry
Year:
2016
Volume:
55
Pages
2691-2700
DOI:
10.1021/acs.inorgchem.5b02094
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.