Synthesis, Photophysical Properties, and Field-Effect Characteristics of (Ethynylphenyl)benzimidazole-Decorated Anthracene and Perylene Bisimide Derivatives
作者:I-Lin Lee、Sie-Rong Li、Kuan-Fu Chen、Po-Jen Ku、Ashutosh S. Singh、Hui-Tung Kuo、Yuh-Sheng Wen、Chi-Wei Chu、Shih-Sheng Sun
DOI:10.1002/ejoc.201200032
日期:2012.5
anthracene derivatives, but only weak emission was observed for perylenebisimidederivatives. The anthracene derivatives showed typical p-type semiconducting character, even when the derivatives were substituted with electron-withdrawing benzimidazole groups at the 9- and 10-positions, which apparently does not lower the LUMO levels to transform them into electron-transporting molecules. Perylene bisimide
设计并制备了一系列具有吸电子苯并咪唑取代基的蒽和苝双酰亚胺衍生物。对这些新化合物的电化学和光物理特性以及场效应迁移率进行了详细研究。与母体化合物相比,吸电子苯并咪唑基团的引入降低了蒽和苝双酰亚胺衍生物中的 LUMO 水平。所有蒽衍生物均观察到强发射,但苝双酰亚胺衍生物仅观察到微弱发射。蒽衍生物显示出典型的 p 型半导体特性,即使这些衍生物在 9 位和 10 位被吸电子苯并咪唑基团取代,这显然不会降低 LUMO 能级以将它们转化为电子传输分子。苝双酰亚胺衍生物显示出典型的 n 通道半导体特性,具有低阈值电压和约 10 倍的电子迁移率。5.2 × 10–5 cm2 V–1 s–1。
Reversible Photooxygenation of Alkynylanthracenes: Chemical Generation of Singlet Oxygen under Very Mild Conditions
作者:Werner Fudickar、Torsten Linker
DOI:10.1002/chem.201102230
日期:2011.12.2
In the dark and very fast: The generation of singlet oxygen (1O2) from endoperoxides, which are readily available by photooxygenation of the corresponding anthracenes, proceeds within minutes in the dark (see scheme), a rate hitherto unknown for other anthracenes or naphthalenes. This provides an efficient chemical source of singlet oxygen under very mildconditions.
在黑暗中并且非常快:在黑暗中,几分钟内即可从内过氧化物中产生单线态氧(1 O 2),这些光可通过相应的蒽的光氧化而容易地获得(见方案),这是其他蒽或其他蒽迄今所未知的速率萘。这在非常温和的条件下提供了有效的单重态氧化学来源。