Ni(II), Cu(II), AND Zn(II) COMPLEXES DERIVED FROM A NEW SCHIFF BASE 2-((Z)-(3-METHYLPYRIDIN-2- YLEIMINO)METHYL)PHENOL AND SYNTHESIS OF NANO SIZED METAL OXIDE PARTICLES FROM THESE COMPOUNDS

AUTOR(ES)

Orojloo, Masoumeh, Nourian, Fereshteh, Arabahmadi, Raziyeh, Amani, Saeid

FONTE

Quím. Nova

DATA DE PUBLICAÇÃO

2015-11

RESUMO

Synthesis, spectral identification, and magnetic properties of three complexes of Ni(II), Cu(II), and Zn(II) are described. All three compounds have the general formula [M(L)2(H2O)2], where L = deprotonated phenol in the Schiff base 2-((z)-(3-methylpyridin-2-yleimino)methyl)phenol. The three complexes were synthesized in a one-step synthesis and characterized by elemental analysis, Fourier transform infrared spectroscopy, electronic spectra, X-ray diffraction (XRD), and room temperature magnetic moments. The Cu(II) and Ni(II) complexes exhibited room temperature magnetic moments of 1.85 B.M. per copper atom and 2.96 B.M. per nickel atom. The X-band electron spin resonance spectra of a Cu(II) sample in dimethylformamide frozen at 77 K (liquid nitrogen temperature) showed a typical ΔMS = ± 1 transition. The complexes ([M(L)2(H2O)2]) were investigated by the cyclic voltammetry technique, which provided information regarding the electrochemical mechanism of redox behavior of the compounds. Thermal decomposition of the complexes at 750 ºC resulted in the formation of metal oxide nanoparticles. XRD analyses indicated that the nanoparticles had a high degree of crystallinity. The average sizes of the nanoparticles were found to be approximately 54.3, 30.1, and 44.4 nm for NiO, CuO, and ZnO, respectively.

Documentos Relacionados

• Electrochemical behavior of Co(II), Ni(II), Mn(II), Fe(II) and Zn(II) in the presence of azide
• Estudos Estruturais por Difração de Raios X de Complexos Metálicos de Fe(II), Co(II), Ni(II), Cu(II) e Zn(II) com Drogas Utilizadas no Tratamento da Tuberculose
• Reações de quelatos N-aciltioureias de Ni(II), Zn(II) e Cd(II) com algumas bases nitrogenadas
• SUPRAMOLECULARIDADE DE TRIAZENOS ASSIMÉTRICOS DISSUBSTITUÍDOS 4-(ETOXICARBONILFENIL)-2-(HALOFENIL) E COMPLEXOS DE Ni(II), Cu(II) E Hg(II)
• Aplicação de complexos de CuII, NiII, ZnII e NbV com ligantes carboxilatos em banhos de eletrodeposição