The primary azo compound 1-(3-formyl-4-hydroxyphenylazo)-4-nitrobenzene reacts with some aliphatic and aromatic diamines and yields the corresponding azo-azomethine compounds. These compounds were characterized by elemental analysis, IR, UV/Vis, and NMR spectroscopy. The primary azo compound exists entirely in the azo form in solution as well as in the solid phase. The tautomeric structure of a...

The azo-azomethine dyes were prepared via condensation reaction of 2,4-dichloro-6-methoxy-1,3,5-triazine with azo couled 2-(2-mercaptophenylimino)methyl)-4-(aryldiazenyl)phenol. The UV–vis spectra indicated positive solvatochromism in synthesized compound are dependent on the substitution, solvent, pH and temperature. Some compounds exhibited antibacterial, antioxidant activities.

Azomethine (C=N) and azo (N=N) scaffolds are a part of structural units in poly(p-phenylene azomethine) (PAM) azo) (PAZ), respectively. Poly(p-phenylene vinylene) (PPV) is known to be one luminescent π-conjugated polymers, meanwhile PAM PAZ, which the aza-substituted PPV analogues, regarded as weak or no emissive materials. However, by boron complexation, intense emission can induced. Furthermo...

New series of Schiff base ligand H(2)L and their Cu(II) and Mn(II) complexes derived from azosulfapyrimidine were synthesized and characterized by elemental and thermal studies conductance measurements IR, electronic and EPR spectra. 3D modeling of the ligand indicate that azo group does not participate in complex formation and surface potential on one of the ligand under study indicate that el...

Different binary phase diagrams, made from two differently substituted three-rings azo/ester and azomethine/ester compounds of the same terminal alkoxy side chain six carbons, as opposed to other polar substituent, which can either donate electrons or withdraw including H. The thermal behavior prepared derivatives was investigated by differential scanning calorimetry phases identified polarized...

The present paper describes the synthesis of two Azo-Schiff base named (2-(((2-aminophenyl)imino)methyl)-6-ethoxy-4-((Z)-phenyldiazenyl) phenol, 2-((Z)-((4-aminobutyl)imino)methyl)-6-ethoxy-4-((Z)-phenyldiazenyl)phenol) by diazotization reaction synthesized (3-Ethoxy-2-hydroxy benzaldehyde) with aniline compound to gave Al- Azo – aldehyde and reacted (O-phenylenediamine or1,4-butanediamine) bas...

New series of Fe (III), Co (II) and Ni (II) complexes of Schiff base ligands HL and H2L derived from azosulfapyrimidine were synthesized and characterized by elemental, conductance measurements, IR, electronic absorption, EPR spectra and magnetic measurements. 3D modeling of the ligand and its metal complex indicated that the electron density on the azomethine groups are much higher than the az...