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Citation: Yongmei Zhao, Yimin Ding, Ying Guo, Zhuoer Wang, Rujie Wang, Shourong Zhu. 多功能变色材料紫精化合物的合成与可视变色传感[J]. University Chemistry, ;2022, 37(5): 211005. doi: 10.3866/PKU.DXHX202110057 shu

多功能变色材料紫精化合物的合成与可视变色传感

Department of Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China

Corresponding author: Yongmei Zhao, zhaoym86@163.com
Received Date: 22 October 2021

变色材料广泛应用于航空航天、能源化工、日用食品、国防及科学研究等诸多领域。紫精化合物（N-取代的-4，4’-联吡啶季铵盐，V）能在外界光、电、热等激发下表现出多样的变色性质，是一类重要的变色材料。本文将紫精变色材料的科学前沿成果引入本科实验教学，创新设计了一个面向本科低年级学生开设的大学化学基础实验。该实验以激发学生的好奇心与探索欲，培养学生对化学的学习兴趣，开阔学生的视野，提高学生对化学的认知为目的，合成了邻羟基苯乙酮取代基紫精，研究了它的溶剂化显色、热致变色及对NH₃的可逆显色反应。实验的特点是反应原料简单易得、合成方法简便、反应时间短、产率高、实验操作安全可靠、变色现象均可以不借助仪器而裸眼直接观察、变色过程快速且灵敏。这些优势为实验项目的应用与推广提供了极大的便利。
- Chromic materials,
- Viologen derivative,
- Visible,
- Ammonia sensor
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