获得环境稳定的双烯的简要合成策略,以实现电活性开 π 结合材料
Caleb M Wehrmann1, Ryan T Charlton1, Mark S Chen1
1Department of Chemistry , Lehigh University , Bethlehem , Pennsylvania 18015-3102 , United States.
Journal of the American Chemical Society
|January 29, 2019
概括
研究人员开发了一种快速合成的开放, π 结合分子. 这种新方法产生了电子稳定基离子,使先进的电子材料能够增强自旋和电荷传输.
科学领域:
- 材料科学
- 有机化学
- 凝聚物质物理学
背景情况:
- 开的, π 结合的分子具有独特的光电子和磁性特性.
- 现有的合成路径通常很长,分子间旋转合的维度有限.
- 需要高效合成稳定的开分子,用于先进的应用.
研究的目的:
- 开发一种通用和快速的碎片合策略来合成开分子.
- 研究新型比拉迪卡洛伊德和双烯基基化合物的特性.
- 探索这些材料在电子设备中的潜力.
主要方法:
- 开发了使用氨酸的碎片合策略.
- 在≤7个步骤中合成比拉迪卡洛伊德 (Ph2-s-IDPL,1) 和基 [10(OTf) ] 双.
- 使用X射线结晶学和采用DFT模拟来描述10...OTf的晶体结构.
- 制造的单晶装置用于电导度测量.
主要成果:
- 从商业原料中快速制造开分子.
- 发现了一种电子稳定的π-基离子 [10(OTf) ],具有多个分子间接触 (<3.4 Å).
- DFT模拟证实了分子间的自旋-自旋合和电静态增强的2D共价相互作用.
- 单晶器件中已证明的平均电导率为1.31 × 10−2 S/cm.
结论:
- 已经建立了先进的开 π 结合材料的实用和一般合成.
- 发现的π-基离子 [10(OTf) 呈现出独特的分子间相互作用,促进了自旋和电荷传输.
- 这些发现为设计具有增强自旋和电荷传输特性的新材料铺平了道路.
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