16623-47-5Relevant academic research and scientific papers
Synthesis, characterization and applications of some azo dyes derived from various aromatic amines
Vidya,Sadasivan
, p. 2049 - 2053 (2018)
In this work, we report the synthesis of metal free dyes and their fastness properties. A series of monoazo dyes obtained by diazotization of various aromatic primary amines and coupling with different components. One coloured Schiff base derived from triethylene tetramine and N,N-dimethylbenzaldehyde was also synthesized. These coloured compounds were characterized by FTIR, UV-visible, 1H, 13C NMR and ESI mass spectroscopic methods. The dyeing performance of all the compounds were evaluated on cotton fabric. They were applied on bleached cotton fabric and their dyeing and fastness properties were assessed. The absorption spectra of the dyes are discussed with regard to their structure. The structure of coloured dyes and Schiff base are proposed based on various spectroscopic data. The newly synthesized group of monoazo dyes gives shades ranging from yellow to reddish orange with good light fastness and excellent wash fastness.
Synthesis, spectral and biological studies of complexes with bidentate azodye ligand derived from resorcinol and 1-amino-2-naphthol-4-sulphonic acid
Vidya,Sadasivan,Meena,Bhatt, Pramod
, p. 45 - 54 (2018)
A new series of transition metal complexes of Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), and Fe(III) with the azo dye, 3-hydroxy-4-(2,4-dihydroxyphenylazo)naphthalene-1-sulphonic acid (LH) have been synthesized and characterized. The structural features have been arrived from their microanalysis, magnetic susceptibility, molar conductance measurements, mass, fluorescence, IR, UV-Vis, 1HNMR and ESR spectral studies. M?ssbauer spectra of two iron complexes have been done. In the light of these results, it is suggested that ligand coordinates to metal ions via hydroxyl oxygen and nitrogen of azo group. The fluorescence spectral property of ligand and complexes studied where complexes shows enhanced emission. The redox property of the Co(II) complex is studied by cyclic voltammetry. The ligand and its Mn(II) complex was investigated for non linear optical property. The in vitro biological activity of the ligand and complexes were tested against Escherichia coli, Staphylococcus aureus, Aspergillus Niger and Candida albicans. The results indicate that the complexes have enhanced biological activity than the ligand. Antioxidant activity of the ligand and complexes was studied by free radical scavenging method. The nuclease activity of ligand and complexes show that they cleave DNA through redox chemistry.
