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Issue 5, 2021
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Single-molecule conductance in a unique cross-conjugated tetra(aminoaryl)ethene

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Abstract

A 1,1,2,2-tetrakis(4-aminophenyl)ethene with three paths of π-conjugation, linear-cis, linear-trans and a cross-conjugation, has been prepared. The molecule is able to bind to gold electrodes forming molecular junctions for single-molecule conductance measurements. Only two regimes of conduction are found experimentally. The modelling of the conductance allows to assign them to through-bond transmission in the linear case, while the cross-conjugated channel is further assisted by through-space transmission, partially alleviating the destructive quantum interference.

Graphical abstract: Single-molecule conductance in a unique cross-conjugated tetra(aminoaryl)ethene

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Article information


Submitted
27 Oct 2020
Accepted
02 Dec 2020
First published
08 Dec 2020

Chem. Commun., 2021,57, 591-594
Article type
Communication

Single-molecule conductance in a unique cross-conjugated tetra(aminoaryl)ethene

S. Medina Rivero, P. García Arroyo, L. Li, S. Gunasekaran, T. Stuyver, M. J. Mancheño, M. Alonso, L. Venkataraman, J. L. Segura and J. Casado, Chem. Commun., 2021, 57, 591
DOI: 10.1039/D0CC07124B

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