NaAg₂Mo₃O₉AsO₄

Abstract

Key indicators: single-crystal X-ray study; T = 298 K; mean (Mo-O) = 0.005 Å; disorder in main residue; R factor = 0.030; wR factor = 0.087; data-to-parameter ratio = 12.6.The title compound, sodium disilver arsenatotrimolybdate, Na 0.93 (1) Ag 2.07 (1) Mo 3 AsO 13 , was prepared by a solid-state reaction. In the crystal structure, isolated AsO 4 tetrahedra share corners with groups of three edge-sharing MoO 6 octahedra. This arrangement leads to the formation of anionic ExperimentalCrystal data

Synthesis, Crystal Structure, and Electrical Properties of a New Molybdylarsenate LiNa5K3Mo11As3O45

“…The radius of semicircles decreases when temperature increases signifying an ionic conduction with activated mechanism. The intercepts of the semicircles with the real 4 4.859 Mo(1)-O 5 5.963 Mo(2)-O 6 6.101 Mo(3)-O 6 6.042 Mo(4)-O 6 6.087 Mo(5)-O 6 6.117 Mo(6)-O 6 6.117 Mo(7)-O 6 6.083 Mo(8)-O 6 5.991 Mo(9)-O 6 6.142 Mo(10)-O 6 6.007 Mo (11) axis give the estimated values of the material's resistances by using the Zview software [22]. The measured impedance can be modeled as that of an equivalent electrical circuit composed of a resistor R connected in parallel with a nonideal capacitor usually known as constant phases elements CPE [23].…”

“…This kind of material shows important energetic property which is the ionic conductivity. We are interested in this field and we have explored the A 2 O-MoO 3 -As 2 O 5 systems (A = alkali or silver) in which many compounds were characterized: K 2 MoO 2 (MoO 2 As 2 O 7 ) 2 [2], Na 2 (MoO 2 ) 3 (As 2 O 7 ) 2 [3], and NaAg 2 Mo 3 O 9 AsO 4 [4]. We have succeeded in the synthesis of a new material LiNa 5 K 3 Mo 11 As 3 O 45 .…”