Synthesis and Characterization of New Rare‐Earth Sandwich‐Type Tungstoarsenates - Sorbonne Université Accéder directement au contenu
Article Dans Une Revue Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry Année : 2006

Synthesis and Characterization of New Rare‐Earth Sandwich‐Type Tungstoarsenates

Résumé

Two new sandwich‐type tungstoarsenate complexes [{Ln3O3(OH2)2}(AsW9O34)2]15− (Ln=La, Ce) were synthesized and studied using spectroscopy and cyclic voltammetry. Ion‐exchange experiments provided evidence for covalent, inner‐sphere bonding of the rare‐earth cations to the trilacunary [AsW9O34]9− polyoxometalate. Cyclic voltammograms of [{Ln3O3(OH2)2}(AsW9O34)2]15− exhibited two pairs of waves with negative potential values, which were attributed to the WVI/WV redox processes in the polyoxotungstate framework. Redox studies of the cerium derivative revealed the presence of two types of cerium ions.

Domaines

Chimie
Fichier non déposé

Dates et versions

hal-04171478 , version 1 (26-07-2023)

Identifiants

Citer

Adrian‐raul Tomşa, Aglaia Koutsodimou, Polycarpos Falaras, Marie‐claude Bernard, Vladimir Graban, et al.. Synthesis and Characterization of New Rare‐Earth Sandwich‐Type Tungstoarsenates. Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry, 2006, 36 (4), pp.335-344. ⟨10.1080/15533170600651447⟩. ⟨hal-04171478⟩
7 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More