Thermal decomposition of (h6-Benzene)tricarbonylchromium(0) inside the a-cages of the Na56Y zeolite

• Main Authors: Forner Ricardo, Vichi Eduardo J. S, Pastore Heloise O
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2004-01-01
• Series: Journal of the Brazilian Chemical Society
• Subjects: (eta6-benzene)tricarbonylchromium(0); Na56Y zeolite; intrazeolite; thermal decomposition; FTIR spectra
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000100002

We present here the first results that show the different thermal stabilities of the complex (eta6-benzene)tricarbonylchromium(0), [Cr(eta6-C6H6)(CO) 3], when anchored at different sites inside the alpha-cages of zeolite Na56Y, sites 1 and 2. When the system is heated under dynamic vacuum, the complex anchored at site 1, in which the interactions C6H6-Na+ and Na+-OC are stronger, decomposes slower than the complex anchored at site 2, in which such interactions are weaker. When the system is heated under static vacuum, the rates of decomposition of the complex anchored in both sites are comparable. The complex inside Na56Y is less stable than the same complex in the solid state.