Synthesis and Properties of Higher-Order Tetrathiafulvalene Oligomers up to the Dodecamer
作者:Tadashi Kageyama、Shinpei Ueno、Kazuo Takimiya、Yoshio Aso、Tetsuo Otsubo
DOI:10.1002/1099-0690(200108)2001:15<2983::aid-ejoc2983>3.0.co;2-6
日期:2001.8
A series of TTF oligomers, the monomer (1), the dimer (2), the trimer (3), the tetramer (4), the hexamer (5), the octamer (6), the decamer (7), and the dodecamer (8) has been synthesized as novel electrooptical materials. Their structures were well characterized by MS and NMR spectroscopy. GPC measurements indicated that they have extended structures, with the increasing number of TTF units, but comprised
一系列TTF低聚物,单体(1)、二聚体(2)、三聚体(3)、四聚体(4)、六聚体(5)、八聚体(6)、十聚体(7)和十二聚体 (8) 已被合成为新型电光材料。它们的结构通过 MS 和 NMR 光谱进行了充分表征。GPC 测量表明它们具有扩展的结构,随着 TTF 单元数量的增加,但由于 E/Z 构象而包含各种异构体混合物。循环伏安研究表明,这些低聚物是高度多重氧化还原系统,特别是最高的十二聚体表现出可逆的、结构较少的氧化还原波,涉及 24 个电子氧化步骤。十二聚体的旋涂膜表现出黄色、黄绿色和蓝色的电致变色,这是由于中性、自由基阳离子,