D-A结构分子内电荷转移（ICT）态化合物以其独特的分子结构和光电性能，成为电致发光材料的首选。目前，ICT化合物的发光效率普遍较低，发光机制尚不明确，缺乏合成高性能ICT态发光材料的理论支撑。松香是我国特色的林业资源，脱氢枞酸三芳胺是具有松香酸刚性稠环结构的富电子共轭体系。本项目在已完成基金项目取得成果基础上，将天然产物的利用与ICT态材料需解决的基本科学问题相结合，以脱氢枞酸三芳胺作为电子给体，以具有芳香环（萘、蒽、菲、芘、吖啶等）的吸电子基团作为电子受体，通过Suzuki偶联反应合成系列脱氢枞酸基D-A结构化合物。通过实验方法研究化合物的光物理行为、电化学性质以及热稳定性能；利用量子化学方法研究它们的ICT态规律，阐明其发光机制，建立ICT态材料结构和性能之间的关系。这是将生物质材料用于OLED的深入探索，为研究和开发新型ICT态发光材料提供理论指导，为松香的高值化利用探索新途径。

Intramolecular charge transfer(ICT) compounds with D-A structures have shown to be an excellent candidate as organic electroluminescent materials because of their unique molecular structure and photoelectric properties. However, ICT compounds remain many unsolved problems, for example, lower luminescent efficiency, unclear luminescent mechanism, and lack of theoretical basis of the development of ICT state luminescent material. Rosin is one of our country’s featured forest resources. And dehydroabietic acid triarylamine compounds posses rigid fused ring structure of rosin acid and triarylamine group with electron rich conjugated system. Based on the results of the last project funded by NNSF, a series of dehydroabietic acid based compounds with D-A structures will be synthesized through Suzuki coupling reaction by using dehydroabietic acid triarylamine as donor and electron-withdrawing groups with aromatic rings(such as naphthalene, anthracene, phenanthrene, pyrene, acridine, and so on) as acceptor. Their photophysical behavior, electrochemical property, and thermal stability were studied. In addition, their ICT rules and luminescent mechanism will also be explored by the quantum chemical calculation methods, the relationship between structure and property of ICT state luminescent material will be studied as well. It is one of applications of biomass in OLED. Results from this project are expected to provide theoretical guidance for the development of innovated D-A structure ICT state luminescent material. Furthermore, it could supply a new way for the high value utilization of rosin.