A compound for an organic light-emitting device, the compound represented by Chemical Formula 1 and satisfying Mathematical Formula 1:
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9,10-Diarylanthracenes as Molecular Switches: Syntheses, Properties, Isomerisations and Their Reactions with Singlet Oxygen
作者:Daniel Zehm、Werner Fudickar、Melanie Hans、Uwe Schilde、Alexandra Kelling、Torsten Linker
DOI:10.1002/chem.200801355
日期:——
exhibit different physical properties (e.g., melting points and solubilities) and interconversion by rotation around the aryl-aryl axis commences at <100 degrees C for fluoro-substituted diarylanthracenes and at >300 degrees C for alkyl- or alkoxy-substituted diarylanthracenes. The reactions with singlet oxygen were studied separately and revealed different reactivities and reaction pathways. The yields
通过钯催化的交叉偶联反应合成了一系列在邻位具有各种取代基的9,10-二芳基蒽。这样的化合物表现出令人感兴趣的物理性质,并且可以用作分子开关。尽管对取代基的空间要求很高,但仍以中等至良好的产率形成了产物。在某些情况下,微波条件进一步提高了产量。双偶合提供了两种在室温下不会相互转化的异构体(顺式和反式)。这些产物很容易分离,并且通过NMR光谱和X射线分析明确地确定了它们的相对立体化学。顺式和反式异构体表现出不同的物理性质(例如,熔点和溶解度),并且围绕芳基-芳基轴的旋转引起的相互转化始于 对于氟取代的二芳基蒽,为100℃,对于烷基或烷氧基取代的二芳基蒽,在> 300℃。与单线态氧的反应分别进行了研究,揭示了不同的反应性和反应途径。产率和反应性取决于取代基的大小和电子性质。抗异构体与顺式物质形成相同的9,10-内过氧化物,偶而伴随着意想不到的1,4-内过氧化物。内过氧化物的热解仅产生同分异构体。围绕芳基-芳基轴的有趣旋转允许将9