Tetraalkoxyphenanthrene-Fused Dehydroannulenes: Synthesis, Self-Assembly, and Electronic, Optical, and Electrochemical Properties
作者:Shin-ichiro Kato、Nobutaka Takahashi、Hidekazu Tanaka、Atsushi Kobayashi、Toshitada Yoshihara、Seiji Tobita、Takeshi Yamanobe、Hiroki Uehara、Yosuke Nakamura
DOI:10.1002/chem.201301262
日期:2013.9.2
tetraalkoxyphenanthrene‐fused dehydro[12]‐, [18]‐, and [24]annulenes 1–3 were synthesized by using Cu‐mediated or Pd‐catalyzed oxidative macrocyclization reactions as key steps, and their electronic, optical, and electrochemical properties have been investigated in detail. X‐ray crystallographic analysis of a single crystal of 1 a demonstrated that the molecules were arranged longitudinally in a slipped π‐stacked
新颖tetraalkoxyphenanthrene稠合脱氢[12] - ,[18] - ,和[24]轮烯1 - 3通过使用Cu介导的或Pd-催化氧化大环化反应作为关键步骤合成,并且它们的电子,光学和电化学性能已经进行了详细的调查。对1 a单晶的X射线晶体学分析表明,分子以π堆积滑动的方式沿纵向排列,形成一维柱。1 H NMR和UV /可见光光谱和在共轭循环伏安分析与核无关的化学位移(NICS)计算为1 - 3支持菲在9,10-位至脱氢戊环的环上的环化增强了同性,并减小了分子相对于苯环的HOMO-LUMO间隙,并且1具有抗芳烃特性。在1和2中观察到了由于CDCl 3中π–π堆积引起的自缔合行为,并通过浓度依赖性1 H NMR光谱测量进行了量化。1和2的自组装获得了具有高长宽比的定义明确的一维上部结构,并通过SEM和广角X射线衍射(WAXD)测量研究了这些化合物的形态和结晶度。此外,通过差示扫