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兴发pt登录学报,2020,37(11):1-3https://doi.org/10.16039/j.cnki.cn22-1249.2020.11.001
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1-苯基偶氮-2-萘酚和1-(2-硝基苯基偶氮)-2-萘酚的合成及光谱研究
吴平1*,唐晓东2,任红1,芦菲1,孟凡飞1
1.兴发pt登录 化学与制药工程学院,吉林 吉林132022;2. 吉化集团公司 锦江油化厂,吉林 吉林132000
Synthesis and Spectroscopic Study of 1-Phenylazo-2-Naphthol and 1 - (2-Nitrophenylazo) - 2-Naphthol
WU Ping1*,TANG Xiaodong2,REN Hong1,LU Fei1,MENG Fanfei1
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摘要

以苯胺和邻硝基苯胺为原料,分别与2-萘酚发生重氮偶氮反应制得两个偶氮化合物(1:1-苯基偶氮-2-萘酚和2:1-(2-硝基苯基偶氮)-2-萘酚),用红外光谱表征其结构,并通过紫外光谱对化合物的光谱性质进行了研究。实验结果表明两个化合物均具有较大的摩尔吸光系数(1:ε478nm= 1.49 × 104L/mol·cm;2:ε329nm= 1.32 × 104L/mol·cm),在溶液pH小于10时紫外光谱基本不变,在强碱性范围内紫外谱图有变化,表现出一定的酸碱变色性。

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吴平
唐晓东
任红
芦菲
孟凡飞
关键词:萘酚苯胺重氮偶合紫外光谱
Abstract:

Two azo compounds (1: 1-phenylazo-2-naphthol and 2: 1-(2-nitrophenylazo)-2-naphthol) were synthesized by diazo coupling reaction of aniline and o-nitroaniline with 2-naphthol, respectively. Their structures were characterized by IR, and the spectral properties of the compounds were studied by UV spectra. The results showed that the two compounds have big molar absorptivity (1:ε478nm= 1.49 × 104L/mol·cm;2:ε329nm= 1.32 × 104L/mol·cm). When the pH of the solution is less than 10, the UV spectrum is basically unchanged. In the strong alkaline range, the UV spectrum changes, showing a certain acid-base discoloration.

Key words:naphtholanilinediazo couplingultraviolet spectra
出版日期:2020-11-25发布日期:2020-11-25整期出版日期:2020-11-25
ZTFLH: O636.1
引用本文:
吴平, 唐晓东, 任红, 芦菲, 孟凡飞. 1-苯基偶氮-2-萘酚和1-(2-硝基苯基偶氮)-2-萘酚的合成及光谱研究 [J]. 兴发pt登录学报, 2020, 37(11): 1-3.
WU Ping, TANG Xiaodong, REN Hong, LU Fei, MENG Fanfei. Synthesis and Spectroscopic Study of 1-Phenylazo-2-Naphthol and 1 - (2-Nitrophenylazo) - 2-Naphthol . Journal of Jilin Institute of Chemical Technology, 2020, 37(11): 1-3.
链接本文:
http://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2020.11.001http://xuebao.jlict.edu.cn/CN/Y2020/V37/I11/1
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