Palladium complex immobilised on zirconium-phosphite: Characterisation by 31P MAS NMR and TEM and behaviour towards reducing agents - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Molecular Structure Année : 2003

Palladium complex immobilised on zirconium-phosphite: Characterisation by 31P MAS NMR and TEM and behaviour towards reducing agents

Résumé

The immobilisation of triphenylphosphine–phosphonic acid complexed to palladium dichloride on a zirconium-phosphite network is achieved by mixing a zirconium(IV) salt, phosphorous acid (H3PO3) and dichlorobis(4-(diphenylphosphinyl)phenylphosphonic acid)palladium 2 to yield the amorphous material 3. The complementary informations obtained by both 31P solid-state NMR (1D and 2D experiments) and Transmission Electron Microscopy analyses (EDS scanning) stated of a homogeneous distribution of palladium in the zirconium-phosphite network allowing us to propose a model for the structure of material 3. The treatment of compounds 3 with a reducing agent (triethyl silane or hydrazine) yields well defined aggregates (palladium oxide or metallic palladium) on the surface of the material that were characterized by TEM.

Domaines

Chimie

Dates et versions

hal-01711630 , version 1 (18-02-2018)

Identifiants

Citer

G. Maheut, M. Hervieu, Christian Fernandez, V. Montouillout, D. Villemin, et al.. Palladium complex immobilised on zirconium-phosphite: Characterisation by 31P MAS NMR and TEM and behaviour towards reducing agents. Journal of Molecular Structure, 2003, 659 (1-3), pp.135-142. ⟨10.1016/s0022-2860(03)00409-5⟩. ⟨hal-01711630⟩
22 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More