Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 47, Pages 19425-19431Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja307544w
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Funding
- Swiss National Science Foundation [200020-116003, 200020-144471, 200021-124643]
- EC FP7 ITN FUNMOLS [212942]
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A new and efficient approach Using cleaving Of trimethylsilyl groups. to create covalent Au-C anchoring sites has been developed for single-molecule junction conductance measurements. Employing the mechanically controllable break junction (MCBJ) technique in liquid, we demonstrate the formation of highly conducting single molecular junctions of several opg derivatives.: The Created junctions are mechanically stable and exhibit. conductances around one order of magnitude higher than those of their dithiol analogues. Extended assembly and reaction times lead to oligomerization: Combined STM imaging and gap-mode Raman experiments provide,structure_evidence.to support the, formation;of.covalent Au-C contacts and further oligomerization.
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