有机蓝光化合物综合性实验的构建与实践

Construction and Practice of Fully Processed Design Experiments for Organic Blue-Emitting Materials

  • 摘要: 为解决传统化学实验教学中“重合成、轻设计、弱关联”的弊端,本文将OLEDs技术中有机蓝光材料的前沿科学问题融入教学,设计了一个集“计算设计−化学合成−性能表征”于一体的综合实验。实验以给体‒π共轭桥‒受体(D‒π‒A)型分子mPTPH为目标,引导学生依次进行Gaussian理论计算与结构预测、Suzuki偶联反应合成提纯,并综合利用核磁、热分析、光谱及电化学等手段进行系统表征。教学实践表明,该实验成功构建了完整的科研训练闭环,学生成功制备出结构正确、热稳定性好、且具蓝光发射特性的目标分子,有效深化了对“结构−性能”关系的理解。本实验将前沿科研转化为优质教学资源,显著提升了学生的综合实践能力与创新素养,对材料、化学类专业的高阶实验教学改革具有示范和推广价值。

     

    Abstract: To address the drawbacks of traditional chemical experiment teaching—namely, “emphasizing synthesis over design and neglecting correlation”—this study integrates cutting-edge scientific issues of blue-emitting materials in OLED technology into teaching, designing a comprehensive experiment that combines “computational design, chemical synthesis, and performance characterization.” The experiment targets the donor-π-conjugated bridge-acceptor (D-π-A) type molecule mPTPH, guiding students through Gaussian theoretical calculations and structural predictions, Suzuki coupling reaction synthesis and purification, followed by systematic characterization using nuclear magnetic resonance, thermal analysis, spectroscopy, and electrochemical methods. Teaching practice demonstrates that this experiment successfully constructs a complete research training loop, enabling students to successfully prepare the target molecule with correct structure, good thermal stability, and blue emission characteristics, effectively deepening their understanding of the “structure-performance” relationship. By transforming cutting-edge research into high-quality teaching resources, this experiment significantly enhances students’ comprehensive practical abilities and innovative literacy, offering exemplary and scalable value for advanced experimental teaching reforms in materials and chemical disciplines.

     

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