Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Stability and electronic spectra of copper(II) halides in butan-1-ol and the effects of R-OH type solvents on these properties.

Abstract : Copper(II) halide complexes were studied in butan-1-ol at 25°C and at constant ionic strength. Formation constants and electronic spectra of all the complexes present in the solution were calculated. The apparent stability of these complexes increases with the number of carbon atoms in the alcohol: the logarithm of the overall stability constant, βj is a linear function of their molecular weights. A regular decrease of the stability with the permittivity of the pure solvents is observed. This result is correlated with the increasing dissociating power of the solvents which promotes better hydrogen bonding and hinders the substitution of the solvent molecule by the ligand in the inner coordination sphere of the metal. There is hardly any ROH-type solvent effect on the electronic spectra of the individual species. Tetrabromocuprate is always present in D4h symmetry, whereas the configuration of tetrachlorocuprate is D4h in methanol and D2d in the higher alcohols.
Type de document :
Article dans une revue
Domaine :
Liste complète des métadonnées

https://hal.univ-angers.fr/hal-03171275
Contributeur : Mustayeen Khan <>
Soumis le : samedi 20 mars 2021 - 19:06:21
Dernière modification le : lundi 22 mars 2021 - 12:22:01
Archivage à long terme le : : lundi 21 juin 2021 - 18:01:07

Fichier

1992-Polyhedron-Embarek.pdf
Accord explicite pour ce dépôt

Identifiants

Collections

Citation

E. Bentouhami, Mustayeen A. Khan, J. Meullemeestre, F. Vierling. Stability and electronic spectra of copper(II) halides in butan-1-ol and the effects of R-OH type solvents on these properties.. Polyhedron, 1992, 11 (17), pp.2179-2182. ⟨10.1016/S0277-5387(00)83693-1⟩. ⟨hal-03171275⟩

Partager

Métriques

Consultations de la notice

11

Téléchargements de fichiers

16