由硫氧化物控制的对抗纯亚的光诱导的形状转换
M Carmen Carreño1, Isabel García, Irene Núñez
1Departamento de Química Orgánica (C-I), Universidad Autónoma de Madrid, Cantoblanco, 28049-Madrid, Spain. carmen.carrenno@uam.es
Journal of the American Chemical Society
|May 15, 2007
概括
化硫氧化酸作为分子开关,在光异构化时表现出性转移和明显的形状变化. 这些特性使光控制分子切换应用成为可能.
科学领域:
- 有机化学 有机化学
- 超分子化学 超分子化学
- 摄影化学的使用.
背景情况:
- 亚烯被广泛用作光响应分子开关.
- 分子开关中的奇拉性可以引入高级功能.
- 硫氧化物组提供立体中心和独特的电子特性.
研究的目的:
- 为了用正极/元极p-tolylsulfoxide替代剂合成enantiopure的阿佐烯.
- 为了研究它们的光异构化行为和奇拉性质.
- 探索它们作为光控制分子开关的潜力.
主要方法:
- 亚博烯衍生物的区域选择性合成.
- 使用紫外线和循环二极化 (CD) 的光异构化研究.
- 通过NMR和手术性高性能液体染色学 (HPLC) 进行结构分析.
主要成果:
- 成功合成了两系列具有硫氧化物组的酸和酸.
- 从硫氧化物转移到亚系统的奇拉性转移的观察,依赖异构体.
- 核磁共振显示出不同的U形 (cis-3) 和S形 (cis-7) 形状.
- 对于trans和cis异构体,特定光学旋转的显著差异.
结论:
- 硫氧化基在光异构化和形状控制中起着双重作用.
- 在光静态状态下形成了不同的性实体.
- 这些亚烯为光控制分子切换应用表现有前途.
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