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Single-molecule conductance oscillations in alkane rings

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Abstract

We investigate the single-molecule electrical conductance of alkane rings connected to gold electrodes and demonstrate that their logarithmic conductances are ocillatory functions of length. This contrasts with the logarithmic conductances of alkane chains, which decay linearly with length. This non-classical behaviour is attributed to conformational effects in the alkane rings, which tend to be more (less) planar when their branches contain even (odd) numbers of CH2 groups. Surprisingly the conductances of alkane rings with two parallel conductance paths are predicted to be lower then those of the corresponding linear chains with only one conductance path.

Graphical abstract: Single-molecule conductance oscillations in alkane rings

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Publication details

The article was received on 05 Nov 2018, accepted on 11 Mar 2019 and first published on 11 Mar 2019


Article type: Paper
DOI: 10.1039/C8TC05565C
Citation: J. Mater. Chem. C, 2019, Advance Article
  • Open access: Creative Commons BY-NC license
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    Single-molecule conductance oscillations in alkane rings

    A. K. Ismael and C. J. Lambert, J. Mater. Chem. C, 2019, Advance Article , DOI: 10.1039/C8TC05565C

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