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

Alanazy, Asma and Leary, E. and Kobatake, T. and Sangtarash, Sara and González, M.T. and Jiang, H.-W. and Bollinger, G.R. and Agräit, N. and Sadeghi, Hatef and Grace, Iain and Higgins, S.J. and Anderson, H.L. and Nichols, R.J. and Lambert, Colin J. (2019) Cross-conjugation increases the conductance of : Meta-connected fluorenones. Nanoscale, 11 (29). pp. 13720-13724. ISSN 2040-3364

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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.

Item Type:
Journal Article
Journal or Publication Title:
Nanoscale
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2500/2500
Subjects:
?? general materials sciencematerials science(all) ??
ID Code:
136030
Deposited By:
Deposited On:
09 Aug 2019 08:25
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Jul 2024 11:14