Cross-conjugation increases the conductance of meta-connected fluorenones.

<p>Charge transport is strongly suppressed by destructive quantum interference (DQI) in <em>meta</em>-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 carbony...

Description complète

Détails bibliographiques
Auteurs principaux: Alanazy, A, Leary, E, Kobatake, T, Sangtarash, S, González, M, Jiang, H, Bollinger, G, Agräit, N, Sadeghi, H, Grace, I, Higgins, S, Anderson, H, Nichols, R, Lambert, C
Format: Journal article
Langue:English
Publié: Royal Society of Chemistry 2019
Description
Résumé:<p>Charge transport is strongly suppressed by destructive quantum interference (DQI) in <em>meta</em>-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 <em>para</em>-connected anthraquinone, where cross-conjugation results in low conductance.</p>