新型多环芳烃Bisanthene衍生物的设计、合成与性质研究

项目名称： 新型多环芳烃Bisanthene衍生物的设计、合成与性质研究

项目编号： No.21302043

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 数理科学和化学

项目作者： 李金玲

作者单位： 河南工业大学

项目金额： 25万元

中文摘要： 多环芳烃共轭体系作为一种新型的有机功能材料，在有机电子学领域占据着举足轻重的地位。其家族成员Bisanthene具有优异的特性，如相对较小的分子能级及平面共轭双烯结构，可以进行化学修饰来合成新型多环芳烃。本项目拟合成以醌式Bisanthene为核心的TTF,TCNQ衍生物：在离子状态下Bisanthene的大π体系能有效的降低双离子内部的库伦斥力,从而稳定双离子；醌式Bisanthene的π体系能促使分子在固体状态下的有序堆砌。因此，以醌式Bisanthene为核心的TTF,TCNQ衍生物应是较好的电子给体、电子受体材料。最后，由于醌式Bisanthene的共轭体系进一步扩大，其在近红外区应有较强的吸收，作为潜在的以芳香体系为骨架的近红外染料。另外，本项目拟在醌式Bisanthene的 meso-位置嵌入杂原子，研究杂原子对醌式Bisanthene的光电性质及自组装性能的影响。

中文关键词： 光电材料；醌式Bisanthene；电子受体；自组装；蜂窝状网络结构

英文摘要： Polycyclic aromatic hydrocarbons (PAHs) with extended π-conjugation play a significant role as novel organic functional materials on organic electronics. As a family member, bisanthene has good characters such as small band gap and planar diene structure, it can serve as a good building block to construct new PAHs by appropriate design and chemical modifications. In this project, we plan to synthesize the TTF and TCNQ derivatives with quinoid bisanthene as the core. On one hand, the π system of bisanthene can decrease the Coulombic repulsion in the ionized state. On the other hand, the π system of quinoid bisanthene could result in highly ordered molecular aggregation at solid state. Therefore, these TTF and TCNQ derivatives should be potential electron donor or acceptor materials. Lastly, they are potential aromatic near infrared dyes because the extention of π system could shift the absorption of quinoid bisanthene to the longer wavelength. In addition, we plan to introduce the heteroatoms into the meso-positions of quinoid bisanthene, and then study the effects of these heteroatoms on the photoelectronic properties and self-assembly behaviors of quinoid bisanthene. These bisanthene-based PAHs not only enrich the family of PAHs, but also provide new materials for organic electronics..

英文关键词： optoelectronic material；quinoidal bisanthene；electron-acceptor；self-assembly；honeycomb network