| Revue: | Ecletica quimica |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000332579 |
| ISSN: | 0100-4670 |
| Autores: | Cristovao, B1 Ferenc, W1 Sarnzyski, J2 Guchłowska, H1 |
| Instituciones: | 1Maria Curie-Sklodowska University, Faculty of Chemistry, Lublin. Polonia 2Maria Curie-Sklodowska University, Institute of Physics, Lublin. Polonia |
| Año: | 2009 |
| Periodo: | Ene-Mar |
| Volumen: | 34 |
| Número: | 1 |
| Paginación: | 25-30 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | The physico-chemical properties of the new 3d-4f heteronuclear complexes with general formula LnCu3(C11H8N2 O4Br)3·13H2O (where Ln = Pr, Eu, Gd, Tb, Er, Yb and H3(C11H8N2 O4Br) - 5-bromosalicylideneglycylglycine) were studied. The compounds were characterized by elemental, spectral and thermal analyses and magnetic measurements. The formation of Schiff base is evidenced by a strong band at ca. 1646-1650 cm-1 attributable to C=N stretching mode. The presence of water molecules is confirmed by broad absorptions with maximum at 3360 - 3368 cm-1. The Cu(II)-Ln(III) complexes are stable up to ca. 318 K. During dehydration process the water molecules are lost probably in two stages. The magnetic susceptibility data for these complexes change with temperature according to the Curie-Weiss law |
| Disciplinas: | Química |
| Palabras clave: | Química organometálica, Lantánidos, Cobre, Bases de Schiff, Momento magnético, Susceptibilidad magnética |
| Keyword: | Chemistry, Organometallic chemistry, Lanthanides, Copper, Schiff bases, Magnetic moment, Magnetic susceptibility |
| Texte intégral: | Texto completo (Ver HTML) |
