Synthesis, Crystal Structure, and Physical Property of Sterically Unprotected Thiophene/Phenylene Co-Oligomer Radical Cations: A Conductive π-π Bonded Supermolecular meso-Helix

被引:14
作者
Chen, Xiaoyu [1 ]
Ma, Binbin [1 ]
Chen, Shuang [2 ]
Li, Yizhi [1 ]
Huang, Wei [1 ]
Ma, Jing [2 ]
Wang, Xinping [1 ]
机构
[1] Nanjing Univ, Nanjing Natl Lab Microstruct, Sch Chem & Chem Engn, State Key Lab Coordinat Chem, Nanjing 210093, Jiangsu, Peoples R China
[2] Nanjing Univ, Theoret & Computat Chem Inst, Sch Chem & Chem Engn, Nanjing 210093, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
cations; conductivity; oligomers; radicals; thiophene; ROOM-TEMPERATURE; DNA-MOLECULES; POLYMERS; ANIONS; DIMERS; 3,4-DIBUTYL-2,5-DIPHENYL-2,25,2-TERTHIOPHENE; OLIGOTHIOPHENES; EMISSION; MONOMERS; STACKS;
D O I
10.1002/asia.201200819
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Sterically unprotected thiophene/phenylene co-oligomer radical cation salts BPnT(center dot+)[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(center dot+) is distinct from previously reported face-to-face overlaps of sterically protected (co-)oligomer radical cations.
引用
收藏
页码:238 / 243
页数:6
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