Effects of Electrode–Molecule Binding and Junction Geometry on the Single-Molecule Conductance of bis-2,2‿6‿2‿Terpyridine-based Complexes

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• 作者：Ross Davidson ; Oday A. Al-Owaedi ; David C. Milan ; Qiang Zeng ; Joanne Tory ; František Hartl ; Simon J. Higgins ; Richard J. Nichols ; Colin J. Lambert ; Paul J. Low
• 刊名：Inorganic Chemistry
• 出版年：2016
• 出版时间：March 21, 2016
• 年：2016
• 卷：55
• 期：6
• 页码：2691-2700
• 全文大小：602K
• ISSN：1520-510X

文摘

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.