Dergi makalesi Açık Erişim

The color, photophysical and electrochemical properties of azo-imine ligands and their copper(II) and platinium(II) complexes

2020    Onur, Sultan; Gungor, Seyit Ali; Tumer, Ferhan; Tumer, Mehmet

Five novel imine based organic ligands (HL1-HL5) and their Cu2+ and Pt2+ metal complexes have obtained and characterized by the micro-analyses, H-1(C-13)NMR, Uv-Vis absorption, emission-excitation (PL), FT-IR and mass spectral techniques. The absorption and PL spectra for all compounds have been studied in both solution and solvent free. Results obtained from the PL spectral values of azo-imine ligands and their metal complexes have shown that there is a shift from the green band to the red band depending on the position of the OH groups and especially for the Pt2+ complexes. The (HNMR)-H-1 spectra of some of the Pt2+ complexes were also recorded. The results of the micro-analytic and spectroscopic methods disclosed that the metal ions coordinates to the ligands via the nitrogen and oxygen atoms of the azomethine and phenolic hydroxy groups. The dyeing properties of the disperse black 9 (DB9), the ligands (HL1-HL5) and their complexes (Cu2+ and Pt2+) have been evaluated in terms of their dyeing behaviour on the wool fabric. The dyed wool fabrics exhibit very well to excellent washing fastness properties. However, they do not have good dyeing properties without mordant. In dyeing process, the amino edge of the wool interacts with the hydrophilic imino diethanol edges of the dyes. The Commission International de I'Eclairage (CIE) chromaticity coordinates are adjacent to the National Television Standard Committee (NTSC) standard value for red color. (C) 2019 Elsevier B.V. All rights reserved.