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Synthesis, characterization, structural study and antibacterial activity of the Schiff bases derived from sulfanilamides and related copper(II) complexes
A new series of Schiff base ligands derived from sulfonamide were prepared and investigated. These ligands were characterized by FT-IR, 1H NMR, UV–vis spectroscopy and elemental analysis. The crystal structures of ligands were determined by single-crystal X-ray diffraction. Also, the copper(II) meta...
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Published in: | Inorganica Chimica Acta 2016-11, Vol.453, p.238-246 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | A new series of Schiff base ligands derived from sulfonamide were prepared and investigated. These ligands were characterized by FT-IR, 1H NMR, UV–vis spectroscopy and elemental analysis. The crystal structures of ligands were determined by single-crystal X-ray diffraction. Also, the copper(II) metal complexes of these ligands were synthesized and characterized by FT-IR, UV–vis spectroscopy and powder X-ray diffraction. The copper(II) chelates have been screened for their antimicrobial activities using the disc diffusion method against the selected bacteria compared with free Schiff base ligands. [Display omitted]
•A series of new sulfonamides and the related copper(II) complexes were synthesized and characterized.•The molecular structures of ligands were determined by X-ray diffraction method and complexes by XRD.•Their antibacterial activities against some microorganism were reported.
In the present work, a series of new Schiff base ligands from acetylacetone and salicylaldehyde with sulfonamides derivatives were synthesized and characterized by spectral and analytical techniques. The molecular structures of ligands, N-({4-[(E)-(2-hydroxybenzylidene)amino]phenyl}sulfonyle)acetamide (HL1), N-({4-[(E)-(2-hydroxybenxiliden)amino]phenyl}sulfonyle)benzamide (HL2) and 4-((4-oxopentan-2ylidene)amino)benzenesulfonamide (HL3) were also determined by the method of X-ray diffraction. Also, new copper(II) complexes [CuLx](x=1 for 1, x=2 for 2, x=3 for 3) constructed from HLx were synthesized and characterized by FT-IR, UV–vis spectroscopy and XRD. The copper(II) complexes were screened for their antimicrobial activities against the selected bacteria and compared to the free ligands, using the disc diffusion method. |
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ISSN: | 0020-1693 1873-3255 |
DOI: | 10.1016/j.ica.2016.07.028 |