Intercalation of tris-(2,2'-bipyridyl)ruthenium(II)in alpha-and gamma-zirconium phosphate:synthesis,thermal behaviour and X-ray characterization

摘要

Intercalation compounds such as the ruthenium trisbipyridyl complex in inorganic layered ion-exchangers(alpha-and gamma-zirconium phosphate)have been synthesized using the batch method.There is no loss of bipyridyl ligand from the metal ion during the exchange of the ruthenium trisbipyridyl complex in these host matrices.The materials obtained are thermally stable up to ~ 330 °C(gamma-phase)or ~ 380 °C(alpha-phase).The complex decomposition occurs in one or more steps and at ~ 600 °C the complex decomposition is complete.The X-ray patterns of ruthenium materials show a new phase with an increase in the interlayer distance with respect to the initial phase.Microanalysis measurements confirm the fact that the ruthenium complex is not modified when exchanged and the complex decomposition depends on its position in the host matrices.