Silver insertion in β-AgxV2O5 tunnel structure

The β-AgxV2O5 phase of silver vanadate has a large homogeneity range, 0.29 ≤ x ≤ 0.41; the (V2O5)n network of its crystal structure is typical of the β phase of the vanadium oxide bronzes with its oxygenated tunnels running along [010]. Ag atoms are inserted in a novel manner, being distributed onto two distinct crystallographic sites, which explains the overstepping of the theoretical boundary limit of the β phases, x = 0.33. (orig.)