Thermochemical Parameters of Tetramethylthiourea Adducts of Certain MetalII BromidesReportar como inadecuado




Thermochemical Parameters of Tetramethylthiourea Adducts of Certain MetalII Bromides - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Complexes of the general formula MBr2TMTUn where M is Mn, Fe, Co, Ni, Cu, Zn or Cd; TMTU is Tetramethylthiourea; n is 0.75, 2 or 3 were obtained by the reaction of salts and ligand in solution. The bromides were selected among several other salts because they had thermochemical data in the literature. Properties as capillary melting points; C, H, N, Br and metal contents; TG-DTG and DSC curves; and IR and electronic spectra were determined. The values of several thermodynamic parameters for the complexes were found by solution calorimetry. From them, the standard enthalpies of the metal-sulphur coordinated bonds were calculated. The standard enthalpies of the formation of the gaseous phase adducts also were estimated.

KEYWORDS

Enthalpies of Formation, Thermodynamic, Coordinated Bond Enthalpies, Solution Calorimetry, Dissolution Enthalpies, Tetramethylthiourea Adducts

Cite this paper

Dunstan, P. 2015 Thermochemical Parameters of Tetramethylthiourea Adducts of Certain MetalII Bromides. Open Journal of Physical Chemistry, 5, 9-19. doi: 10.4236-ojpc.2015.51002.





Autor: Pedro Oliver Dunstan

Fuente: http://www.scirp.org/



DESCARGAR PDF




Documentos relacionados