Utilizing Noncovalent Conformational Locks to Create Through- Space Charge Transport
JOURNAL OF PHYSICAL CHEMISTRY C(2023)
摘要
Creating through-space electron transport (ET) channels in the molecular backbone has been rarely explored in molecular electronics. Here, we demonstrated that through-space channels could be readily created by substituting the H atom of the central benzene in a starting molecule 1,4-dithiophene-benzen (DT-B) with F, which forms an interaction with the thiophene S and gives rise to the F-S type noncovalent conformational locks (NCLs). Single-molecule conductance investigation showed the molecular conductance was increasingly larger with more F substituents. A theoretical study revealed that NCLs play a major role in enhancing the ET rates, which not only led to better pi-conjugation but also created additional through-space transport channels.
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关键词
noncovalent conformational locks,through-space
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