Presence of colour in water will make it unsuitable for human consumption. Textile industries have the major role in imparting colour in natural water bodies as their outlets are opened to them. These industries rely upon azo dyes as it impart brilliant colour to fabrics. But its presence in water bodies creates serious problems. Structure of an azo compound is a very important factor to be con...

DOI: 10.22631/chemm.2017.96853.1009 Quantum-chemical calculations using the Density Functional Theory (DFT) approach for structural analysis of the new dichroic mono azo dye: Sodium (E)-5-((4carboxylatophenyl)diazenyl)-2-hydroxybenzoate (S) (trans isomer) was carried out using B3LYP methods with 6-311+G* basis set. After calculations, the new mono azo dye was synthesized. UV, FT-IR and 1H NMR s...

The first paper of this series (1) reported the results of tests of the carcinogenic activity of cer tam analogs of p-dimethylaminoazobenzene (DAB) in which a pyridine ring or a thiazole ring replaced one of the benzene rings of DAB. Due to the presence of the hetero atom or atoms, position isomers are possible in the heterocyclic analogs, and some of these isomers were synthesized and tested. ...

A novel class of azo-guanidine compounds is introduced in this article. The novel compound 2-(2-hydroxyphenyl)-1-(phenylamino)-3-(phenylimino)guanidine (AG) was synthesized and well characterized by using different analytical instrumental techniques like elemental analysis, FTIR, (1)H and (13)C NMR, UV-Visible spectroscopy and cyclic voltammetry. The new compound was found interacting with DNA ...

This research involved synthesizing two compounds as derivatives of 2-naphthol by the classical method. The azo coupling compound was prepared via diazonium salt 4-amino acetophenone followed 2-naphthole. azo-Schiff molecule synthesized through condensation an with 5-amino salicylic acid in acidic medium. Using spectrum approaches, new are characterized (13C-NMR, 1H-NMR, FT-IR). acid-base chara...

In this work, a new organic compound (K-Azo) was introduced to enhance the electrical and optical performance of graphene oxide (GO) reduced GO (rGO) nanostructured films. The improved modified chemical vapour method employed for synthesis rGO. photophysical characterization thin films performed by applying analytical techniques including X-ray diffraction, Fourier-transform infrared spectrosco...

4-Oxo-2-thioxo-1,2,3,4-tetrahydropyrimidine (2-thiouracil) is reacted with a series of diazotized aromatic amines to give compounds On the other hand compound is -methylated by methyl iodide giving 4-oxo-2-methylthioxo 1,2,3,4tetrahydropyrimidine which inturn is reacted with a series of diazotized aromatic amines giving arylazo derivatives of the type . In another reaction compound is hydrolyse...

An azo-based dye (I) was designed for the detection of cyanide by utilizing a new indirect method. In the presence of Cu(II), compound I could give rise to visible red-to-yellow color change. The resultant yellow solution could change to red immediately upon the addition of trace cyanide, with the detection limit of 0.15 ppm, but no changes were observed in the presence of other anions, includi...