Phase equilibria in the Tl₂MoO₄–R₂(MoO₄)₃–Zr(MoO₄)₂ (R = Al, Cr) systems: synthesis, structure and properties of new triple molybdates Tl₅RZr(MoO₄)₆ and TlRZr_0.5(MoO₄)₃

Abstract

The Tl 2 MoO 4 -R 2 (MoO 4 ) 3 -Zr(MoO 4 ) 2 (R = Al, Cr) systems were studied in the subsolidus region using X-ray powder diffraction and differential scanning calorimetric (DSC) analysis. Quasi-binary joins were revealed, and triangulation was carried out. New ternary molybdates Tl 5 RZr(MoO 4 ) 6 (5:1:2) and TlRZr 0.5 (MoO 4 ) 3 (1:1:1) (R = Al, Cr) were prepared. The unit cell parameters for the new compounds were calculated.

A new Tl4.86Fe0.82Hf1.18(MoO4)6ternary molybdate: crystal structure and properties

“…To date, many compounds have been obtained in systems with C = Zr and Hf. In the zirconium system, compounds have been synthesized and characterized where A = K, Rb, Cs and Tl; B = Al, Fe III , Cr, Bi, La-Lu and Y (Bazarov et al, 2008b;Chimitova et al, 2010;Gongorova et al, 2012;Dorzhieva et al, 2016;Logvinova et al, 2016;Grossman et al, 2017). In the hafnium system, compounds have been synthesized and characterized, where A = K, Rb and Tl; B = Al, Sc, Fe III , In and La-Lu (Bazarov et al, 2004(Bazarov et al, , 2005(Bazarov et al, , 2006(Bazarov et al, , 2008a(Bazarov et al, , 2016Romanova et al, 2007;Chimitova et al, 2007;Grossman et al, 2008Grossman et al, , 2012.…”