Azo-azomethine dyes with N, O, S donor set of atoms and their Ni(II) complexes: Synthesis, characterization and spectral properties

作者：Khanmohammadi Hamid^*; Rezaeian Khatereh; Amini Mostafa M; Ng Seik Weng

来源：Dyes and Pigments, 2013, 98(3): 557-564.

DOI：10.1016/j.dyepig.2013.03.023

• Azo-azomethine
• Azo dye
• Fluorescence
• Nickel(II) complexes
• Thermal properties
• X-ray structure

New azo-azomethine dyes, L-1-L-3, with N2S2O2 donor set of atoms have been synthesized via condensation reaction of 1,2-bis(2-aminophenylthio)ethane with 5-(4-X-phenyl)-azo-salicylaldehyde (X = Cl, OMe and Me). The new dyes were characterized by IR, UV-Vis, H-1 NMR and fluorescence spectroscopy as well as mass spectrometry and elemental analysis. Mononuclear nickel(II) complexes of the dyes have been also prepared. The crystal structure of [NiL1]center dot 0.5H(2)O was determined by single-crystal X-ray diffraction. The thermal analysis data indicate that all prepared dyes, L-1-L-3, are thermally stable up to 320 degrees C. The fluorescence behavior of the prepared complexes have been also investigated and compared to those of L-1-L-3.

• 出版日期2013-9