合成席夫碱类光致变色有机化合物  

Synthesis of Schiff Base Based Photochromic Organic Compounds

作　　者：李金洲 耿嘉浩 刘聪达 李继龙 Li Jinzhou;Geng Jiahao;Liu Congda;Li Jilong(School of Environmental and Chemical Engineering,Shenyang University of Technology,Shenyang Liaoning 110158,China)

机构地区：[1]沈阳理工大学环境与化学工程学院,辽宁沈阳110158

出　　处：《山西化工》2023年第10期5-6,9,共3页Shanxi Chemical Industry

摘　　要：光致变色性能的化合物在许多领域表现出重要的应用前景,引起人们越来越多的关注。本实验立足于合成简单的有机光致变色化合物席夫碱类的2-(2,4-二硝基苄基)吡啶(DNBP)。通过2-苄基吡啶的硝化反应,合成黄色固态晶体2-(2,4-二硝基苄基)吡啶。受热或光照下的2-(2,4-二硝基苄基)吡啶由黄色变为蓝色,本文设计了不同简单安全的变色塑料、蓝晒法冲洗照片、紫外线防护等相关实验。本实验仪器简单、成本低廉,适于在化学等相关专业的本科实验教学中推广,同时观赏性强,兼具科学性,易于理解、接受和参与,受众范围广,也适合面向大众进行化学科普讲解。Compounds with photochromic properties have shown important application prospects in many fields and have attracted increasing attention.This experiment is based on the synthesis of 2-(2,4-dinitrobenzyl)pyridine(DNBP),a simple organic photochromic compound of Schiff bases.Yellow solid crystal 2-(2,4-dinitrobenzyl)pyridine was synthesized through the nitration reaction of 2-benzylpyridine.Under heat or light,2-(2,4-dinitrobenzyl)pyridine changes from yellow to blue.This article designs experiments on different simple and safe color changing plastics,blue light method for photo development,and UV protection.This experimental instrument is simple and cost-effective,suitable for promotion in undergraduate experimental teaching of chemistry and other related majors.It is also highly ornamental,scientific,easy to understand,accept,and participate in,and has a wide audience.It is also suitable for teaching chemistry science to the public.

关 键 词：光致变色化合物 2-(2 4-二硝基苄基)吡啶 化学科普 紫外线 

分 类 号：TQ253.2[化学工程—有机化工]