梯子是p-phenylenevinylene的,具有和碳桥梁
Caihong Xu1, Atsushi Wakamiya, Shigehiro Yamaguchi
1Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan.
Journal of the American Chemical Society
|February 11, 2005
概括
研究人员开发了一种多用途的方法,用和碳桥梁合成梯子氧化 (p-phenylenevinylene) (LOPVs). 这种技术创造了延伸的,平坦的pi-conjugated系统,呈现出明亮的光和小的斯托克斯移位.
科学领域:
- 有机化学 有机化学
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
背景情况:
- 梯形基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基基
- 现有的合成方法往往缺乏多功能性或难以产生延伸的,明确的梯子结构.
研究的目的:
- 开发一种通用和多用途的合成方法,用于构建梯形烯 (LOPV) 和相关的pi电子系统.
- 为了使LOPVs的同源序列的合成具有不同程度的环聚变.
- 描述合成梯子系统的结构和光物理特性.
主要方法:
- 一种新的合成策略,结合了 (o-silylphenyl) 乙烯衍生物的分子内还原循环和Friedel-Crafts类型循环.
- 顺序应用这些循环化反应来构建化环系统.
- 晶体结构分析和光物理测量 (光光谱) 用于描述产品.
主要成果:
- 一个同源系列LOPV的成功合成,包括一个13环融合系统.
- 晶体结构分析显示了一个几乎平坦的pi-conjugated框架 (约. 2.9纳米长) 对于最大的LOPV.
- 所有合成的梯子pi电子系统都显示出强烈的可见光,具有高量子产量和小的斯托克斯移位.
结论:
- 开发的合成方法是通用和通用的,用于创建复杂的梯子pi-conjugated系统.
- 合成的LOPV具有理想的光物理特性,包括强烈的光和最小的斯托克斯转移,这使得它们对光电子应用具有前景.
- 这项工作扩大了具有可调节电子和光学特征的可访问pi-conjugated材料的范围.
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