SYNTHESIS, CHARACTERIZATION AND REDOX BEHAVIOUR OF MIXED LIGAND COPPER(II) SACCHARINATE COMPLEXES
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| Autores: | , , |
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| Formáid: | artículo original |
| Stádas: | Versión publicada |
| Fecha de Publicación: | 2012 |
| Cur Síos: | Three mixed-ligand complexes of Cu(II) with saccharin (sac), pyrazole, (Hpz), imidazole, (Himid) were synthesized and characterized on the basis of elemental analysis, FT-IR spectroscopy, magnetic susceptibility, EPR spectra, and X-ray diffraction. The reaction of [Cu(sac)2(H2O)4] ⋅ 2H2O with pyrazol in methanol resulted in a mononuclear pentacoordinated compound [Cu(sac)2(Hpz)3] (1) and a trinuclear N,N.bridged compound [Cu3(sac)2(Hpz)3(pz)3)2(OH)] (2), forming a nine membered [-Cu-N-N-]3 ring and μμ3-‐‐OH bridge; each Cu(II) ion is tetracoordinated, with weak axial interactions from saccharinate ions.The Himidazole compound [Cu2(sac)4(Himid)4] (3) has a dinuclear structure with two saccharinate ions as bridge; each Cu(II) ions has a penta-coordination sphere, two N-coordinated and one O-coordinated saccharinate ions on the equatorial plane, and two imidazole molecules in the axial positions. |
| País: | Portal de Revistas UCR |
| Institiúid: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Teanga: | Inglés |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/3771 |
| Rochtain Ar Líne: | https://revistas.ucr.ac.cr/index.php/cienciaytecnologia/article/view/3771 |
| Palabra clave: | saccharinate complexes hydrogen bonds pyrazole imidazole metal complexes copper complejo sacarinato enlaces de hidrógeno pirazol complejo metálico cobre |