p-phenyl azophenol
| p-(phenylazo) phenol | |
|---|---|
 E body | |
| General information | |
| IUPAC name | 4-hydroxy azobenzene (I derive it than allowable specific epithet) |
| Another name | 4-(phenylazo) phenol |
| Molecular formula | C12H10N2O |
| Molecular weight | 198.22 g/mol |
| Shape | Orange crystal |
| CAS registration number | [1689-82-3](the three-dimensional uncertainty) [20714-70-9](E body) [37790-28-6](Z body) |
| Property | |
| Melting point | 150–152 [1] ° C |
An organic compound with the structure that one hydroxy group was in on azobenzene with p-(phenylazo) phenol (para-phenyl azo phenol, p-(phenylazo)phenol). Bright orange crystallization. From the structure, I am called 4-(phenylazo) phenol, 4-hydroxy azobenzene.
Synthetic
I add sodium nitrite to dilute hydrochloric acid solution of the aniline and assume it benzene diazonium (C6H5N ≡ N+ Cl-) chloride, and, in addition, diazo couples the solution with the solution which dissolved phenol in a sodium hydroxide water solution. Finally deposition of p-(phenylazo) phenol is provided when neutralized with hydrochloric acid. [2]
Color
The difference in color with azobenzene depends on the existence of the hydroxy group. It is a cause to be tinged with a reddish tinge a little that π-π* absorption hangs over the visible light domain by the function of electronic grant basis.
References
- ^ http://www.sigmaaldrich.com/catalog/ProductDetail.do?N4=131083%7CSIAL&N5=SEARCH_CONCAT_PNO%7CBRAND_KEY&F=SPEC
- ^ Haghbeen, K.; Tan, E. W. J. Org. Chem. 1998, 63, 4503. (doi:10.1021/jo972151z)
This article is taken from the Japanese Wikipedia p-phenyl azophenol
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