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来源：百度知道 编辑：UC知道 时间：2024/06/22 14:43:58
Configuration-Specific Synthesis of the Facial and Meridional Isomers of Tris(8-hydroxyquinolinate)aluminum (Alq3)
Treatment of AlO(OH) with 3 equiv of 8-hydroxyquinolinol in refluxing deionized water provided the meridional and facial isomers of tris(8-hydroxyquinolinate)aluminum (Alq3) with good yields as solid deposits after 1 and 90 h, respectively. X-ray diffraction and solid-state C NMR studies revealed that mer-Alq3 is formed in the early stage of the reaction and then gradually converts to fac-Alq3, which is thermodynamically less stable, although no existence of a catalyst substance is implied.
Tris(8-hydroxyquinolinate)aluminum (Alq3) is widely used in organic light-emitting diodes (OLEDs) as the cost-efficient green light-emitting material since the late 1980s, and its physicochemical properties are still under active investigation. The molecule consists of three chelating oxyquinoline ligands, occurring in the facial (fac) and meridional (mer) isome

Configuration-Specific合成的面部和南欧异构体的三(8-hydroxyquinolinate)铝(Alq3)。
嗨(哦)处理的8-hydroxyquinolinol 3为回流去离子水中提供了纵向和面部的三(8-hydroxyquinolinate)异构体(Alq3)有良好的铝产量为固体存款和90小时后,分别为1。x射线衍射和固态碳的研究显示,mer-Alq3形成于早期的反应,然后逐渐转为fac-Alq3乳液、相对稳定,虽然没有生存的物质是一种催化剂模棱两可。
三(8-hydroxyquinolinate)铝(Alq3)被广泛地应用于有机发光二极管发光材料成本的绿色自20世纪80年代末以来,及其理化特性还在调查中。这个分子由三个螯合oxyquinoline配体,发生在面部(fac)和纵向(倍)异构体(图1)。虽然Alq3异构化反应中是一个非常重要的问题就发射光谱表征的行为,五个晶(,,,,,,,,只是在最近才可用。据报道,并且包含mer-Alq3结晶;在这两个不同的包装方式、分子生物学、阶段,包括fac-Alq3。最近的研究fac-Alq3指定阶段,虽然这个问题仍然没有解决。在两种结构的不同,fac-Alq3特别向往它blue-shifted荧光和高量。然而,fac-Alq3只取得了在subgram订单的Alq3升华的混合变羊或者热转换的商业Alq3丙酮、氯仿紧随其后的治疗,因为综合控制配配置一直被认为是困难的有利的形成稳定乳液倍体异构。一般来说,Alq3是由三氯化铝、联反应的硝态氮3 *硝酸铝、或Al2(SO4)3 *水与8-hydroxyquinolinol(8-Hq),它所提供的拆分作为主要产品倍,上升到绿色荧光。也准备在混合异构体的固体加热混合物的铝propoxide(铝[OCH,(2)(3)CH3)和8-Hq所需要的产品几乎相同的解决方法。热interconversionbetween广泛调查的变羊由光谱方法和量子化学计算。

配置特定的合成面部和经异构体的三（ 8 hydroxyquinolinate ）铝（ Alq3 ）
治疗铝（氢）与3当量的8 hydroxyquinolinol在去离子水回流提供了子午和面部异构体的三（ 8 hydroxyquinolinate ）铝（ Alq