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

doi:10.16039/j.cnki.cn22-1249.2020.11.001

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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：ε_478nm = 1.49 × 10⁴ L/mol·cm；2：ε_329nm = 1.32 × 10⁴ L/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：ε_478nm = 1.49 × 10⁴ L/mol·cm；2：ε_329nm = 1.32 × 10⁴ L/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: naphthol aniline diazo coupling ultraviolet spectra

出版日期: 2020-11-25 发布日期: 2020-11-25 整期出版日期: 2020-11-25

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]. 吉林化工学院学报, 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.

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https://xuebao.jlict.edu.cn/CN/10.16039/j.cnki.cn22-1249.2020.11.001 或 https://xuebao.jlict.edu.cn/CN/Y2020/V37/I11/1

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