高等学校化学学报 ›› 2024, Vol. 45 ›› Issue (1): 20230432.doi: 10.7503/cjcu20230432

• 有机化学 • 上一篇    下一篇

一锅法合成可印刷室温磷光二氟化硼衍生物

张兴红, 耿鹏, 向娟娟, 晏佳莹, 毛妙付, 肖述章()   

  1. 三峡大学材料与化工学院, 宜昌 443002
  • 收稿日期:2023-09-28 出版日期:2024-01-10 发布日期:2023-11-23
  • 通讯作者: 肖述章 E-mail:shuzhangxiao@ctgu.edu.cn
  • 作者简介:第一联系人:共同第一作者.
  • 基金资助:
    国家自然科学基金(22171163);三峡大学“111”创新引智基地计划项目(D20015);宜昌市自然科学研究项目(A23-2-025)

One-pot Synthesis of Room Temperature Phosphorescent Boron-difluoride Derivative for Printing

ZHANG Xinghong, GENG Peng, XIANG Juanjuan, YAN Jiaying, MAO Miaofu, XIAO Shuzhang()   

  1. College of Materials and Chemical Engineering,China Three Gorges University,Yichang 443002,China
  • Received:2023-09-28 Online:2024-01-10 Published:2023-11-23
  • Contact: XIAO Shuzhang E-mail:shuzhangxiao@ctgu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(22171163);the“111” Intellectual Attraction Base Project in CTGU, China(D20015);the Yichang Natural Science Research Program, China(A23-2-025)

摘要:

纯有机室温磷光(RTP)材料因其潜在的应用价值而备受关注. 迄今, 多数已报道的有机RTP材料在晶态下发射出较强的RTP, 但在溶液加工过程中易生成无定形态, 从而失去RTP性能. 本文通过一锅法两步反应, 合成了含有多个甲氧基的二氟化硼衍生物(BF2-tPMO). 晶体结构分析表明, 多个甲氧基的存在构建了有效的分子间非共价相互作用. 这些非共价键作用可抑制分子运动, 保持较高的发光效率. 此外, 这些非共价键作用能够使其在溶剂处理后依然保持晶态性质, 进而保持RTP性能. 实验结果表明, BF2-tPMO可溶解在不同溶剂中且在溶剂蒸发后仍能保持相同的RTP特性, 为易加工型RTP材料的设计提供了有效的策略.

关键词: 二氟化硼, 室温磷光, 一锅法合成, 分子间相互作用

Abstract:

Pure organic room-temperature phosphorescent(RTP) materials have been under wide investigation due to their various potential applications. Till now, most reported organic RTP materials emit robust RTP in crystalline state, but lose RTP properties during the solution processing. Here, a boron-difluoride derivative bearing multiple methoxy group(BF2-tPMO) was synthesized through a one-pot two-step reaction. The existence of multiple methoxy groups helped to construct effective intermolecular non-covalent interactions, as revealed by X-ray single crystal structure. These intermolecular non-covalent interactions might help to alleviate molecular motions to increase emission efficiency, and also help to maintain its crystalline nature during the evaporation of organic solutions to keep its RTP character. Our experimental results indicate that BF2-tPMO maintained its RTP properties after solution processing, providing an effective strategy for designing RTP materials with convenient manipulation.

Key words: Boron-difluoride, Room temperature phosphorescence, One-pot synthesis, Intermolecular interaction

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