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Phase diagrams for the M2MoO4–Ln2(MoO4)3–Hf(MoO4)2 systems, where M = Li–Cs, Tl and Ln = La–Lu

Zh. G. Bazarova, V. G. Grossman, B. G. Bazarov, Yu. L. Tushinova, O. D. Chimitova, Ts. T. Bazarova

Abstract


In this paper, the results of systematic studies of complex molybdate systems M2MoO4–Ln2(MoO4)3–Hf(MoO4)2 (M = Li–Cs, Tl; Ln = La–Lu) are presented. Subsolidus phase diagrams of ternary systems were constructed and new triple molybdates were obtained. The optimum synthesis conditions for poly- and monocrystalline form were determined. According to single-crystal data, the structure of one of the representatives of triple molybdates was determined.

Keywords


phase equilibria; synthesis; oxide systems; lithium; sodium; potassium; rubidium; cesium; thallium; lanthanides; hafnium; crystal structure

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References


Haque M, Lee HI, Kim DK. Luminescent properties of Eu3+-activated molybdate-based novel red-emitting phosphors for LEDs. J Alloys Compd. 2009;481:792–6. doi:10.1016/j.jallcom.2009.03.083

Haque M, Kim DK. Luminescent properties of Eu3+ activated MLa2(MoO4)4 based (M = Ba, Sr and Ca) novel red-emitting phosphors. Mater Lett. 2009;3:793–6. doi:10.1016/j.matlet.2009.01.018

Liang Y, Noh HM, Ran W, Park SH, Choi BC, Jeong JH, Kim KH. The design and synthesis of new double perovskite (Na,Li)YMg(W,Mo)O6:Eu3+ red phosphors for white light-emitting diodes. J Alloys Compd. 2017;716:56–64. doi:10.1016/j.jallcom.2017.05.027

Evdokimov AA, Efremov VA, Trunov VK, Kleyman IA, Tananaev IV. Soedineniya redkozemel'nykh elementov. Molibdaty, vol'framaty [Rare-earth elements' compounds. Molibdates, wolframates]. Moscow: Nauka; 1991. 267 p. Russian.

Trunov VK, Efremov VA, Velikodny YuA. [Crystal chemistry and properties of double molybdates and tungstates.] Leningrad (USSR): Nauka; 1986. 173 p. Russian.

Basovich OM. [New phases in M2MoO4–Ln2(MoO4)3 (M = Ag, Tl) and Li2MoO4–M2MoO4–Ln2(MoO4)3 (M = K, Rb, Tl) systems] [dissertation]. Irkutsk (Russia); 2006. Russian.

Spitsyn VI, Trunov VK. [New data on double tungstates and molybdates of composition MeLn(EO4)2]. [Reports of the Academy of Sciences of the USSR]. 1969;185(4):854–5. Russian.

Savel'eva MV, Shakhno IV, Plyushchev VE. [Synthesis and properties of molybdates of alkaline and some rare-earth elements]. Izv AN SSSR: Inorg Mat. 1970;6(9):1665–9. Russian.

Solodovnikov SF, Balsanova LV, Bazarov BG, Zolotova ES, Bazarova ZhG. Phase formation in the Rb2MoO4–Li2MoO4–Hf(MoO4)2 system and the crystal structure of Rb5(Li1/3Hf5/3)(MoO4)6. Russ J Inorg Chem. 2003;48(7):1084–8.

Zolotova ES. [Synthesis and physico-chemical properties of double molybdates of alkali and tetravalent elements] [dissertation]. Novosibirsk (Russia); 1986. Russian.

Klevtsov PV, Zolotova ES, Glinskaya LA, Klevtsova RF. Synthesis, thermal stability and crystal structure of rubidium double molybdates with zirconium and hafnium. Russ J Inorg Chem. 1980;25(7):1844–50.

Bazarov BG, Bazarova TsT, Fedorov KN, Bazarova ZhG, Klevtsova RF, Glinskaya LA. Systems Tl2MoO4–E(MoO4)2 where E = Zr, Hf and crystal structure of Tl8Hf(MoO4)6. Russ J Inorg Chem. 2006;51(5):794–9. doi:10.1134/S0036023606050184

Klevtsova RF, Antonova AA, Glinskaya LA. The crystal structure of Cs2Hf(MoO4)3. Crystallography. 1980;25(1):161–4.

Romanova EYu. [New double and triple molybdates in the Ln2(MoO4)3–Hf(MoO4)2 and K2MoO4–Ln2(MoO4)3–Hf(MoO4)2 (Ln = La–Lu, Y) systems] [dissertation]. Irkutsk (Russia); 2007. Russian.

Grossman VG, Bazarov BG, Tushinova YuL, Bazarova ZhG. Phase equilibria in the Li2MoO4–Ln2(MoO4)3–Hf(MoO4)2 (Ln = La–Lu) systems. Russ J Inorg Chem. 2015;51(4):351–4. doi:10.1134/S0020168515030061

Tushinova YuL, Bazarova TsT, Bazarov BG. [Phase relations in the Na2MoO4–Ln2(MoO4)3–Zr(MoO4)2 (Ln = Nd, Sm, Er, Lu)]. Vestnik buryatskogo gosudarstvennogo universiteta [Bulletin of Buryat State University]. 2014;3:3–6. Russian.

Grossman VG, Bazarov BG, Bazarova ZhG. Subsolidus phase diagrams for the Tl2MoO4–Ln2(MoO4)3–Hf(MoO4)2 systems, where Ln = La–Lu. Russ J Inorg Chem. 2008;53(11):1788–94. doi:10.1134/S003602360811020X

Chimitova OD. [Phase equilibrium, crystalline structures and electrical properties of new triple molybdates in the Rb2MoO4–Ln2(MoO4)3–Hf(MoO4)2 (Ln = La–Lu) systems] [dissertation]. Krasnoyarsk (Russia); 2008. Russian.

Shannon RD. Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Cryst. 1976;A32:751–67. doi:10.1107/S0567739476001551




DOI: https://doi.org/10.15826/chimtech/2017.4.4.03

Copyright (c) 2017 Zh.G. Bazarova, V.G. Grossman, B.G. Bazarov, Yu.L. Tushinova, O.D. Chimitova, Ts.T. Bazarova

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Chimica Techno Acta, 2014-2024
ISSN 2411-1414 (Online)
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