摘要
拥有大环π电子高度共轭结构的酞菁(Pc)核,具备自组装的潜在特征,且在可见光区域具有强吸收。经修饰改性的酞菁衍生物被应用于液晶显示、太阳能电池、非线性光学等光电材料中。其中,液晶相行为影响材料性能方面更引人关注。通过修饰酞菁核可以改变液晶相行为,最具有代表性的修饰是酞菁核中心空腔阳离子配位和外围添加取代基团。经修饰改性的酞菁衍生物柱状自组装趋势明显,盘状中间相易形成,共轭层之间电子的传输能力得到增强,具备了作为光电材料的基本性质。该文综述了近十几年来酞菁衍生物盘状液晶材料的研究进展,总结了酞菁核的结构修饰对其液晶性能影响之间的构效关系,最后对酞菁衍生物盘状液晶在高性能材料合成方面存在的缺陷和研究方向进行了展望。
Phthalocyanine(Pc)core with large ringπelectron highly conjugated structure has the potential of self-assembly and shows strong absorption in the visible light region.Modified phthalocyanine derivatives have been used in liquid crystal display,solar cells,nonlinear optics and other optoelectronic material,among which,the influence of liquid crystal phase behavior on the material properties drew more attention.The behavior of the liquid crystal phase can be changed by modifying the phthalocyanine core.The most representative modification is the central cavity cation coordination of the phthalocyanine core and the addition of a peripheral substituent group.The modified phthalocyanine derivatives exhibit obvious column self-assembly trend,easy formation of disk mesophase,and the electron transmission ability enhancement between conjugated layers,which are the basic properties of photoelectric materials.Herein,the research progress on phthalocyanine derivative discotic liquid crystal materials in the past decade was reviewed.The structure-activity relationship between the structure modification of phthalocyanine core and its liquid crystal properties was then summarized.Finally,the defects and research directions of phthalocyanine derivative discoid liquid crystals in the synthesis of high-performance materials were prospected.
作者
王桂霞
殷宇通
王佳伟
张林峰
周超
孔翔飞
WANG Guixia;YIN Yutong;WANG Jiawei;ZHANG Linfeng;ZHOU Chao;KONG Xiangfei(College of Chemistry and Biological Engineering,Guilin University of Technology,Guilin 541004,Guangxi,China)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2023年第8期1645-1655,共11页
Fine Chemicals
基金
广西自然科学基金面上项目(2018GXNSFAA281115、2020GXNSFAA297046)
国家自然科学基金地区科学基金项目(22168015)。
关键词
酞菁核
酞菁衍生物
盘状液晶
修饰
构效关系
phthalocyanine nucleus
phthalocyanine derivatives
discoid liquid crystals
modification
structure-activity relationship
作者简介
王桂霞(1976—),女,博士,教授;联系人:孔翔飞(1975—),男,博士,教授,E-mail:xiangfei.kong@glut.edu.cn。
