基于蒽的双极荧光材料的合成及性能研究

论文总字数：19304字

摘 要

蒽是一种蓝色荧光材料，然而,由于蒽分子的平面结构,蒽分子之间易聚集产生结晶,这大大降低了蒽在有机电致发光器件中的实际应用价值^[1]。蒽的衍生物作为蓝色发光材料具有较好的成膜性、稳定性和适当的载流子传输特性,因而倍受人们的关注。如果在蒽分子的9,10-位引入基团,减少蒽分子之间的聚集,同时又有较好的光电性能,则会大大提高蒽的衍生物在有机电致发光器件中的实际应用价值。

本文就是基于蒽类衍生物良好的光电性质, 以开发高效蓝色发光材料为目的，在原料9,10-二溴蒽的基础上，接入二苯酮和二苯砜设计合成了两种蒽衍生物类蓝光材料。所得的两个化合物经过柱层析和重结晶等方法分离提纯，并通过了核磁验证了化学结构。进而利用紫外-可见吸光谱收和荧光发射光谱对目标化合物的光物理性质进行了研究两个个目标化合物的紫外吸收波长最大都在215nm左右。荧光发射峰波长在410-525nm之间，属于蓝光范围。荧光发射光谱中，最大发射峰随着溶剂极性的增大而发生红移。结果表明此类化合物是具有潜力的蓝光材料。

关键词：蒽类衍生物；蓝光材料；二苯酮；二苯砜；合成；光物理性质

Based on the bipolar anthracene blue fluorescent material synthesis and performance research

Abstract

Anthracene is a blue fluorescent material, however, due to the planar structure of the anthracene molecules, between anthracene molecules are easy to gather produce crystal, which greatly reduces the anthracene in the organic electro luminescence device in the actual application value of ^[1]. Anthracene derivatives as blue light emitting materials have good into membrane, stability and appropriate carrier transport properties and thus attracted a great deal of attention. If the group is introduced in anthracene molecules 9,10-bis, reduce between anthracene molecular aggregation. At the same time, it has good optical performance, it will greatly improve the anthracene derivatives in organic electroluminescent devices in practical application value. This article is based on photoelectric properties of anthracene derivatives, to develop efficient blue luminescent materials for the purpose of, on the base of raw materials - dibromoanthracene, access benzophenone and diphenyl sulfone design synthesized two derivatives of anthracene blue material. Two compounds obtained by column chromatography and crystallization separation purification method, and verified by NMR chemical structure. And the use of UV Vis absorption spectra and fluorescence emission spectra of target compounds on the photophysical properties were study by one of the target compounds by UV absorption wavelength maximum at 215 nm around. The fluorescence emission peak wavelength in the range of 410-525 nm, which belongs to the scope of blue. The fluorescence emission spectra, emission maximum with increasing solvent polarity and the red shift. Results show that this compound is a potential blue light emitting material.

Keywords: Anthracene derivatives; Blue light material; Two phenyl ketone;Two phenyl sulfone;Synthesis; Photoelectric properties;Photophysical properties

目 录

摘要 I

Abstract II

第一章 引言 III

1.1 研究背景 1

1.2 文献综述 1

1.3 论文研究内容 8

第二章 实验部分 10

2.1 主要试剂及规格 10

2.2 实验仪器及型号 11

2.3 表征方法 11

2.4 目标化合物和相关中间体 12

2.4.1 目标化合物 12

2.4.2 相关中间体 12

2.5 目标化合物和相关中间体的合成路线及步骤 13

2.5.1 目标化合物的合成路线及步骤 13

2.5.2 相关中间体的合成路线及步骤 14

2.6 本章小结 18

第三章 结果与讨论 19

3.1 概述 19

3.2 光物理性质 19

3.2.1紫外可见吸收光谱和荧光光谱 19

3.2.2 化合物结构表征 26

3.3 理论计算 26

3.4 计算结果 27

3.5本章小结 27

第四章 结论和展望 28

4.1 结论 28

4.2 展望 28

致谢 29

参考文献 30

附录 化合物的结构表征图 31

1. 引言
   1. 研究背景

蒽是一种蓝色荧光材料，然而,由于蒽分子的平面结构,蒽分子之间易聚集产生结晶,这大大降低了蒽在有机电致发光器件中的实际应用价值^[1]。蒽的衍生物作为蓝色发光材料具有较好的成膜性、稳定性和适当的载流子传输特性,因而倍受人们的关注。如果在蒽分子的9,10-位引入基团,减少蒽分子之间的聚集，同时又有较好的光电性能,则会大大提高蒽的衍生物在有机电致发光器件中的实际应用价值。

剩余内容已隐藏，请支付后下载全文，论文总字数：19304字