Decomposição térmica de complexos de Zn e Cd com isomaleonitriladitiolato (imnt) Thermal decomposition of Zn and Cd complexes with isomaleonitriledithiolate (imnt)

• Published in: Química Nova
• Main Authors: Cristiane M. L. Barbosa, Maria Terezinha Caruso Sansiviero
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2005-10-01
• Subjects: single-source precursor; thermal decomposition; II-VI semiconductor
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422005000500005

<abstract language="eng">Thermal decomposition of [Bu4N]2[Zn(imnt)2] and [M(NH3)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 ºC, in N2 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.