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Cross-conjugation increases the conductance of: Meta-connected fluorenones

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<mark>Journal publication date</mark>7/08/2019
<mark>Journal</mark>Nanoscale
Issue number29
Volume11
Number of pages5
Pages (from-to)13720-13724
Publication statusPublished
Early online date12/07/19
Original languageEnglish

Abstract

Charge transport is strongly suppressed by destructive quantum interference (DQI) in meta-connected 1,1′-biphenyl-containing molecules, resulting in low electrical conductance. Surprisingly, we have found that DQI is almost entirely overcome by adding a bridging carbonyl, to yield a cross-conjugated fluorenone. This contrasts with other π-systems, such as para-connected anthraquinone, where cross-conjugation results in low conductance.