Series of d10 complexes based on sulfamethoxazole: Auxiliary ligand induces structure diversity, luminescence and antibacterial properties
2021
Abstract Modified 4-amino-N-(5-methyl-1, 2-sulfathiazole-3-yl) benzenesulfonamide acid has been synthesized, and then was employed to further construct series of new d10 metal complexes under the presence of N-containing auxiliary ligands. Namely, amsba–pyrimidine H2O (1), [Zn (amsba) (phen)2 H2O] CIO4(2), [Zn (amsbp)2 (4,4′-bipy)2](3), [Cd2 (amsba) (phen)2 H2O] NO3(4) and [Cd2 (amsba)2 2,2′-bipy] (5), respectively (while, amsba = 4-amino-N- (5-methyl-1, 2- sulfathiazole-3-yl) benzenesulfonamide, 4, 4′-bipy = 4,4′-bipyridine, 2,2′-bipy = 2,2′- bipyridine, phen = 1,10- phenanthroline). They have been structurally characterized by X-ray single crystal diffraction, Fourier transform IR spectroscopy and TG-DTA measurements. The complex incorporating phen moiety just displays a mononuclear structure, while the coordination polymers incorporating bipy segments exhibit one or two-dimensional arrangements. The photo-luminescence and antibacterial properties of series compounds have been investigated systemically. Electronic-structure analysis from density functional theory confirms the optical absorption of the 3 and 4 are nearly in the visible region. The photo-luminescence and antibacterial properties of series compounds have been studied.
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