| Autor: |
Tobón Zapata, Gloria Elena, Martínez Carmona, Dina Marcela, Echeverría, Gustavo Alberto, Piro, Oscar Enrique |
| Zdroj: |
Acta Crystallographica Section B: Structural Science, Crystal Engineering & Materials; Jun2022, Vol. 78 Issue 3, p490-498, 9p |
| Abstrakt: |
The crystal structures of bis[1‐ethyl‐6‐fluoro‐4‐oxo‐7‐(piperazin‐1‐ium‐4‐yl)‐1,4‐dihydroquinoline‐3‐carboxylato]copper(II) sulfate heptahydrate, [Cu(C16H18FN3O3)2]SO4·7H2O or [Cu(nor)2]SO4·7H2O (nor is norfloxacin), and bis{1‐[2‐(ethylsulfonyl)ethyl]‐2‐methyl‐5‐nitroimide}dinitratocopper(II), [Cu(NO3)2(C8H13N3O4S)2] or [Cu(NO3)2(tnz)2] (tnz is tinidazole), were solved by X‐ray diffraction. Both complexes crystallize in the space group P21/c, with Z = 4 (for nor) and Z = 2 (for ntz) molecules per unit cell. In [Cu(nor)2]SO4·7H2O, the CuII ion is at the centre of a square‐planar environment, trans coordinated to two independent norfloxacin molecules in the zwitterionic form acting as bidentate ligands through one of the carboxyl (cbx) and the carbonyl (cb) O atoms. The solid is further stabilized by an extensive network of N—H…O(sulfate), N—H…O(cbx), N—H…OW, OW—H…O(sulfate) and OW—H…OW hydrogen bonds. The [Cu(NO3)2(tnz)2] complex is centrosymmetric, with the CuII ion in a square planar environment, coordinated to a tinidazole molecule acting as a monodentate ligand through its imidazole N atom and to one nitrate O atom. The vibrational FT–IR absorption spectra and thermal behaviour of the complexes were also studied and are briefly discussed based on the crystal structures.The structural, spectroscopic and thermal characterization of the novel compounds [Cu(norfloxacin)2]SO4·7H2O and [Cu(NO3)2(tinidazole)2] with potential use as antimicrobial agents is presented. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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