Synthesis,Crystal Structure,and Physical Property of Sterically Unprotected Thiophene/Phenylene Co‐Oligomer Radical Cations: A Conductive π–π Bonded Supermolecular meso‐Helix |
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| Authors: | Xiaoyu Chen Binbin Ma Shuang Chen Prof Yizhi Li Prof Wei Huang Prof Jing Ma Prof Xinping Wang |
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| Institution: | 1. State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Nanjing University, 210093 (P. R. China), Fax: (+86)?25‐8331‐4502;2. Theoretical and Computational Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093 (P. R. China) |
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| Abstract: | Sterically unprotected thiophene/phenylene co‐oligomer radical cation salts BPnT.+Al(ORF)4]? (ORF=OC(CF3)3, n=1–3) have been successfully synthesized. These newly synthesized salts have been characterized by UV/Vis‐NIR absorption and EPR spectroscopy, and single‐crystal X‐ray diffraction analysis. Their conductivity increases with chain length. The formed meso‐helical stacking by cross‐overlapping radical cations of BP2T.+ is distinct from previously reported face‐to‐face overlaps of sterically protected (co‐)oligomer radical cations. |
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| Keywords: | cations conductivity oligomers radicals thiophene |
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