The physico-chemical properties of 4-chlorophenoxyacetates of Mn(II), Co(II), Ni(II) and Cu(II)
Título del documento: The physico-chemical properties of 4-chlorophenoxyacetates of Mn(II), Co(II), Ni(II) and Cu(II)
Revista: Ecletica quimica
Base de datos: PERIÓDICA
Número de sistema: 000366666
ISSN: 0100-4670
Autores: 1
1
2
1
Instituciones: 1Maria Curie-Sklodowska University, Faculty of Chemistry, Lublin. Polonia
2Maria Curie-Sklodowska University, Faculty of Physics, Lublin. Polonia
Año:
Periodo: Ene-Mar
Volumen: 33
Número: 1
Paginación: 7-14
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés The complexes of 4-chlorophenoxyacetates of Mn(II), Co(II), Ni(II) and Cu(II) have been synthesized as polycrystalline solids, and characterized by elemental analysis, spectroscopy, magnetic studies and also by X-ray diffraction and thermogravimetric measurements. The analysed complexes have the following colours: pink for Co(II), green for Ni(II), blue for Cu(II) and a pale pink for Mn(II) compounds. The carboxylate group binds as monodentate and bidentate ligands. On heating to 1173K in air the complexes decompose in several steps. At first, they dehydrate in one step to anhydrous salts, that next decompose to the oxides of respective metals. Their magnetic moments were determined in the range of 76-303K. The results reveal them to be high-spin complexes of weak ligand fields
Disciplinas: Química
Palabras clave: Química organometálica,
4-clorofenoxiacetato,
Complejos organometálicos,
Manganeso,
Cobalto,
Níquel,
Cobre,
Estabilidad térmica,
Propiedades magnéticas
Keyword: Chemistry,
Organometallic chemistry,
4-chlorophenoxyacetate,
Organometallic complexes,
Manganese,
Cobalt,
Nickel,
Copper,
Thermal stability,
Magnetic properties
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