通过新的分子内还原双循环化合成的双桥式stilbene同类物
Shigehiro Yamaguchi1, Caihong Xu, Kohei Tamao
1Department of Chemistry, Graduate School of Science, Nagoya University, and PRESTO, Japan Science and Technology Corporation, Chikusa, Nagoya 464-8602, Japan. yamaguchi@chem.nagoya-u.ac.jp
Journal of the American Chemical Society
|November 6, 2003
概括
研究人员使用一种新的还原循环化方法合成了新的桥式基. 这些化合物表现出强烈的可见光,桥显著改变电子和光学性能相比碳同类.
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:
- 由于其独特的电子性质,桥式有机分子引起了人们的兴趣.
- 斯蒂尔衍生物以其光物理特性而闻名.
- 开发复杂有机结构的新合成路径对于材料创新至关重要.
研究的目的:
- 开发一种新型的合成方法,用于桥式钢板.
- 为了研究这些新化合物的光物理性质.
- 了解桥对电子结构和光的影响.
主要方法:
- 使用纳化的 bis ((o-silyl) -diphenylacetylenes 的分子内还原循环.
- 乙部分的两电子还原,形成二离子中间体.
- 在5-exo模式下进行双循环,以产生双桥梁的 stilbenes.
- 合成四基-桥式二 () .
主要成果:
- 一个新的同类系列的双桥式基被成功合成.
- 该方法被扩展到合成四基桥式基.
- 合成的桥式pi-conjugated系统在可见区域显示了强烈的光.
- 与碳类似物进行比较,发现桥对电子结构和光有显著影响.
结论:
- 已经建立了一种新且多功能的方法来合成桥式基和相关化合物.
- 桥的存在极大地影响了这些结合系统的电子和光物理性质.
- 这些发现为设计具有定制性质的新光材料打开了道路.
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