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在水中的协调子中的阿扎波尔芬的红色发射开/关
Kosuke Ono1, Jeremy K Klosterman, Michito Yoshizawa
1Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
Journal of the American Chemical Society
|August 20, 2009
概括
这项研究展示了一种新型的协调,该保留了水中的四亚松 (TAP) 的红色发射特性. 子还可以创建一个可切换酸/的光材料,用于先进的应用.
科学领域:
- 超分子化学 超分子化学
- 材料科学 材料科学 材料科学
- 摄影化学的使用.
背景情况:
- 红色发射分子,如四亚松 (TAP) 是有价值的传感和照明,但遭受贫困的溶解性和聚合引起的火.
- 开发稳定,水溶性的红色发射剂对于扩大它们在生物和材料科学中的应用至关重要.
研究的目的:
- 开发一种在水溶液中稳定红色排放型四亚氨酸 (TAP) 的方法.
- 设计一种超分子系统,防止聚合并保持TAP的光物理性质.
- 创建一个响应的光材料,基于一个酸/触发的开启/关闭开关.
主要方法:
- 阴离子协调的合成和特征.
- 在协调内封装四松氨酸 (TAP).
- 在水溶液中进行光谱分析 (UV-Vis吸收,光发射).
- 研究pH值对封装TAP的光物理性质的影响.
主要成果:
- 协调子成功地隔离了四亚松 (TAP),保持了其在水中的红色发射特性.
- 封装防止非排放聚合物的形成,增强光稳定性.
- 阴离子宿主降低了TAP内部质子的pK(a),使得pH取决于光调节.
- 使用封装TAP系统证明了酸/开/关光开关.
结论:
- 协调提供了一种可行的策略,以克服TAP等红色发射分子的可溶性和聚合问题.
- 这种超分子方法产生了一个稳定的,水溶性的红色发射器,通过酸开关可调节光.
- 开发的系统有望用于水性化学传感,生物成像和新型发光材料的应用.
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