Physico-analytical studies on some heterocyclic azo dyes and their metal complexes with some transition metals

HIGHLIGHTS

• who: Fathy A. El-Seify from the mole), or, (3u2032-phenyl-5u2032-pyrazolyl azo) resorcinol (Ib) (MW=, g/mole), which are dried in a vacuum desiccator over anhydrous C u00ad aCl2. The two azo dyes (Ia and Ib) have been investigated by elemental analysis (C, H, N and S elements) and IR spectra. The analysis of (C, H, N, and S) and IR spectra are determined on the microanalytical unit at the Chemistry Department, Faculty of science, Cairo University. The two dyes (la and Ib) are sparingly soluble in water while they are soluble in ethanol, methanol . . .
  

   

  

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