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BIBTEX RIS

Decomposição térmica de complexos de Zn e Cd com isomaleonitriladitiolato (imnt)

2005; Brazilian Chemical Society; Volume: 28; Issue: 5 Linguagem: Inglês

10.1590/s0100-40422005000500005

ISSN

1678-7064

Autores

Cristiane Maria Leonardo Barbosa, Maria Terezinha C. Sansiviero,

Tópico(s)

Corrosion Behavior and Inhibition

Resumo

THERMAL DECOMPOSITION OF Zn AND Cd COMPLEXES WITH ISOMALEONITRILEDITHIOLATE (imnt).Thermal decomposition of [Bu 4 N] 2 [Zn(imnt) 2 ] and [M(NH 3 ) 2 (imnt)] complexes with M = Zn and Cd, and imnt = (bis 1,1-dicyanoethylene-2,2 dithiolate) in inert atmosphere was investigated by thermogravimetric analysis (TG) and differential scanning calorimetry (DSC).Pyrolysis studies at different temperatures, 300, 400, 500, and 600 o C, in N 2 atmosphere were performed and the products were characterized by X-ray diffraction (XRD), infrared and Raman spectroscopy, and scanning electron microscopy (SEM).The products were identified as sulfide sub-micron particles, along with amorphous carbon.Particle sizes estimated by SEM were ca.50 nm for the cationic complexes and 500 nm for the neutral complexes.

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