在溶液-HOPG接口上的二甲基乙烯衍生物分子排序的可逆光诱变变化
Ryota Arai1, Shinobu Uemura, Masahiro Irie
1Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
Journal of the American Chemical Society
|June 28, 2008
概括
光染色的二甲基乙烯分子在接口上改变了它们的二维排序. 这种分子排序是可逆的,取决于特定的分子结构和光线.
科学领域:
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
- 摄影化学的使用.
背景情况:
- 利乙烯和烯衍生物是光色分子,在分子开关和数据存储中具有潜在的应用.
- 控制接口上的分子排序对于开发先进的功能材料至关重要.
研究的目的:
- 为了研究在溶液高度定向的烧解石墨 (HOPG) 接口上的二乙烯-烯合物二维分子排序的光诱导变化.
- 了解分子结构与观察到的排序行为之间的关系.
主要方法:
- 迪亚利乙烯-皮林迪亚德和三合体分子的合成.
- 使用扫描道显微镜 (STM) 在溶液-HOPG接口上的分子排列的表征.
- 对光色异构体依赖排序的分析.
主要成果:
- 二甲-二烯二甲和三甲分子在溶液-HOPG接口上呈现出明显的二维排序.
- 在交替的紫外线和可见光照射下,三合体分子的排序发生可逆变化.
- 观察到的光诱导的排序变化归因于开放和闭合异构体的独特分子结构.
结论:
- 这项研究表明,光诱导和可逆控制分子在接口上的排序使用二甲基乙烯-烯合物.
- 分子结构在决定二维排序行为方面起着至关重要的作用.
- 这些发现有助于设计光响应超分子组件.
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01:21[3,3] Sigmatropic Rearrangement of 1,5-Dienes: Cope Rearrangement
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