Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 133, Issue 36, Pages 14313-14319Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja201861k
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Funding
- Spanish Ministerio de Ciencia e Innovacion [MAT2008-01735, RYC-2008-03328, CSD2007-0010]
- CAM [S2009/MAT-1726]
- EU through the network FUNMOLS [PITN-GA-2008-212942]
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We study the formation mechanism of molecular junctions using break-junction experiments. We explore the contribution of gold-atom rearrangements in the electrodes by analyzing the junction stretching length, the length of individual plateaus, and the length of the gold one-atom contacts. Comparing the results for alkane dithiols and diamines, we conclude that thiols affect gold electrode dynamics significantly more than amines. This is a vital factor to be considered when comparing different binding groups.
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