大学化学 >> 2015, Vol. 30 >> Issue (4): 30-35.doi: 10.3866/pku.DXHX20150430

化学实验 上一篇    下一篇

光致变色化合物环化量子产率的测定

牛丽红, 赵福群, 周云, 杨锦, 尉京志   

  1. 清华大学化学系 北京 100084
  • 发布日期:2015-08-14
  • 通讯作者: 赵福群 E-mail:zhaofqun@mail.tsinghua.edu.cn

Measuring the Cyclization Quantum Yield of Photochromic Diarylethene

Niu Lihong, Zhao Fuqun, Zhou Yun, Yang Jin, Wei Jingzhi   

  1. Department of Chemistry, Tsinghua University, Beijing 100084, China
  • Published:2015-08-14

摘要:

量子产率是光化学反应中一个重要的物理量。实验中选用二芳基乙烯类光致变色化合物,利用自行搭建的装置,开发了一个测定光化学反应量子产率的新实验,用于中级化学实验教学中。实践表明,该实验加深了学生对相关理论原理和应用的理解,提高了学生自主实验能力和实验兴趣。

关键词: 量子产率, 光化学反应, 光致变色

Abstract:

Quantum yield is an important parameter in photochemistry. Diarylethene, as a kind of photochromic compound, is used in the experiment. We have validated the method for measuring the quantum yield in the photochemical reaction using the in-house made setup and applied this experiment to the comprehensive laboratory course. This experiment facilitates a better understanding of the principles and the applications, and the students' ability and interest to conduct an experiment are improved.

Key words: Quantum yield, Photochemistry reaction, Photochromic

MSC2000: 

  • O6