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Controlling Electrical Conductance through a π-Conjugated Cruciform Molecule by Selective Anchoring to Gold Electrodes.

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Huang Cancan, Chen Songjie, Baruël Ørnsø Kristian, Reber David, Baghernejad Masoud, Fu Yongchun, Wandlowski Thomas, Decurtins Silvio, Hong Wenjing, Thygesen Kristian Sommer, Liu Shi-Xia,
Project Electron Transport at the Nanoscale - An Electrochemical Approach II
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Original article (peer-reviewed)

Journal Angewandte Chemie (International ed. in English)
Volume (Issue) 54(48)
Page(s) 14304 - 7
Title of proceedings Angewandte Chemie (International ed. in English)
DOI 10.1002/anie.201506026


Tuning charge transport at the single-molecule level plays a crucial role in the construction of molecular electronic devices. Introduced herein is a promising and operationally simple approach to tune two distinct charge-transport pathways through a cruciform molecule. Upon in situ cleavage of triisopropylsilyl groups, complete conversion from one junction type to another is achieved with a conductance increase by more than one order of magnitude, and it is consistent with predictions from ab initio transport calculations. Although molecules are well known to conduct through different orbitals (either HOMO or LUMO), the present study represents the first experimental realization of switching between HOMO- and LUMO-dominated transport within the same molecule.