MECHANISMS OF INORGANIC REACTIONS

Author: ESCAMILLA ROA ELIZABETH.
Year: 2005.
University: GRANADA.
Place of defense: UNIVERSIDAD DE GRANADA.
Place of preparation: ESTACIÓN EXPERIMENTAL DEL ZAIDÍN.

Summary: The filosilicatos 2:1 dioctaédricos are abundant and structures are part of the earth's crust, are very complex structures due to the small size of particles and the cationic disorder that comes from the isomórficas substitutions. Have been studied extensively by various experimental techniques, however, there are phenomena that have not been fully understood thus using theoretical methods can address these phenomena. In this paper we study various configurations cationic from the substitutions isomórivas also examines the effect of substitution isomórfica on crystal parameters and stability of these structures. On the other hand, explores the interactions and frequencies of the groups OH, finally looked at the reaction mechanism of pyrophyllite deshidroxilada.

Author: Esteban Moreno Julio.
Year: 2006.
University: VALENCIA.
Place of defense: Facultat de Química.
Place of preparation: Universidad de Valencia.

Summary: This work can be grouped into two distinct blocs, the chemical compounds Pt (IV) (Chapter I) and chemical compounds dinucleares of Rh (II) (Chapter II-V). In the first case studies carried out cinético-mecanísticos reactions substitution ligands coordinated coordinated, depending dela temeratura, pressure, solvent and the characteristics estéricas and electronic ligands of inbound and outbound. The techniques used in this study have also been applied to the study of behavior in dissolution of compounds dinucleares of Rh (II) and the use of spectroscopic techniques for the determination of equilibrium constants. Similarly, the proton NMR spectroscopy, phosphorus and fluoride has been a common tool used in this work. Ultimately, has also conducted a survey of the most significant aspects of the structure of these compounds in solid state. This would have used the new products dinucleares characterized by diffraction techniques Rays, in this paper, together with those previously described in the literature. The fundamental aim was to link the properties of ligands linked to the willingness of the molecules in the crystal. In this regard, described in this paper, getting the first crystal compound dinuclear of Rh (II) enantiomericamente pure obtained by resolution of a dissolution of the racemic mixture.