Abstract
A series of azo-metal chelate dyes have been synthesized by coupling substituted o-nitroaniline and p-t-/s-butylphenol. The spectral characterization of the azo dyes containing o-hydroxy group and azo-metal(II) chelate [metal(II): Cu, Ni, Co] dyes by IR spectra, UV–VIS spectra, NMR spectra, elemental analysis and magnetic susceptibility techniques are reported. The stoichiometry of the azo-metal chelates was determined by the spectroscopic titration method to be 1:2 (ML2).
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Kılınçarslan, R., Erdem, E. & Kocaokutgen, H. Synthesis and spectral characterization of some new azo dyes and their metal complexes. Transition Met Chem 32, 102–106 (2007). https://doi.org/10.1007/s11243-006-0134-x
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DOI: https://doi.org/10.1007/s11243-006-0134-x