Synthesis and characterization of four N-acylhydrazones as potential O,N,O donors for Cu2+: An experimental and theoretical study
| Autor: | María Mercedes Hincapié Otero, Andrey Joaqui Joaqui, Dorian Polo Cerón |
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| Jazyk: | English<br />Spanish; Castilian |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Universitas Scientiarum, Vol 26, Iss 2, Pp 193-215 (2021) |
| Druh dokumentu: | article |
| ISSN: | 0122-7483 2027-1352 |
| DOI: | 10.11144/Javeriana.SC26-2.saco |
| Popis: | N-acylhydrazones 2-(4-chlorophenyl)-N0 -(2-hydroxybenzylidene)acetohydrazide, N0 -(2-hydroxybenzylidene)-2-(4-methoxyphenyl)acetohydrazide, 2-(4-chlorophenyl)-N0 -(2,4-dihydroxybenzylidene)-acetohydrazide, and N0 -(2,4-dihydroxybenzylidene)-2-(4-methoxyphenyl)acetohydrazide were successfully synthesized by a multistep procedure. The obtained organic molecules were characterized by spectroscopic techniques (FT-IR, 1D and 2D NMR, UV-Vis) and mass spectrometry. The structure of 2-(4-chlorophenyl)-N0 -(2-hydroxybenzylidene)acetohydrazide was also confirmed by X-ray diffraction. Ab initio computational simulations of the ligand spectra were in good agreement with experimental data and validated the hypothesis about the existence of a conformational mixture of each ligand in solution. Finally, the complexation potential of the synthesized ligands to Cu2+ was assessed by continuous variation experiments and FT-IR spectroscopy. |
| Databáze: | Directory of Open Access Journals |
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