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Study on the Synthesis of Carbazole Derivatives Possessing Luminescent Properties

Author: SunJinYu
Tutor: ZhangZhao
School: Shanxi University
Course: Organic Chemistry
Keywords: The organic electroluminescent Carbazole Wittig reaction Conjugated Copolymer
CLC: O626.2
Type: Master's thesis
Year: 2006
Downloads: 427
Quote: 1
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Abstract


Organic electroluminescent device is a hot research topic in recent years, one chemist. And inorganic electroluminescent device, compared with organic electroluminescent devices with high efficiency, strong brightness, rich colors, wide viewing angle, low power consumption, fast response, low production costs, and the IC to match the DC low voltage drive, all color large area display, good mechanical properties, etc.. Organic electroluminescent device as the material basis of organic electroluminescent materials directly affect the device performance of its key elements, and therefore chemists in this field is one of the important issues. Currently, the organic electroluminescent device has made significant progress, is toward practical, commercial development, but the device performance in the brightness, efficiency and longevity remains to be further improved. As the hole transport material and electroluminescent materials research, some small molecule carbazole carbazole derivatives derivatives and polymers in organic electroluminescent materials and devices in the field occupies a very important position. Main-chain or branched polymer containing a carbazole ring with unique photophysical properties, such as branched chain containing a carbazole ring is poly (N-vinylcarbazole) is a typical light conductor, is widely used as a hole transport material, there is often an organic electroluminescent device as a hole transport layer; main chain containing a carbazole ring conjugated copolymer PCO good thermal stability, low driving voltage, high glass transition temperature, but also in the organic electroluminescent device blue-green light having an emission characteristic. On the other hand, the new ring containing a carbazole compound as a small molecular organic electroluminescent material of the device has also been reported in the literature. But so far, including dual-carbazole ring small molecule research literature rarely reported. The analysis and summary of the literature on the subject, based on doing the work of the following aspects: 1. Conjugated copolymers: N-alkyl substituted by, formylation and polycondensation synthesized four conjugated main chain containing a carbazole ring and the conjugated polyene structure of the organic polymer, and by IR and ~ 1HNMR its structure was characterized by a viscosity average molecular weight were determined. 2. Synthesis of small molecule compounds: N-alkyl substituted by, formylation and polycondensation reactions, two containing bis synthesized and conjugated carbazole ring structure of the styrene-based small molecule organic compounds and by IR, ~ 1HNMR and elements analysis of their structures were characterized. 3. Some intermediates and target product of the synthesis reaction conditions were studied. Elected synthesis dicarboxy pair carbazole compounds and diphenyl vinyl carbazole compounds double preferred synthesis process, and achieved good results.

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CLC: > Mathematical sciences and chemical > Chemistry > Organic Chemistry > Heterocyclic compounds > Containing five pairs or more different atoms of heterocyclic
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