Phase transitions and high-temperature crystal chemistry of polymorphous modifications of Cs2(UO2)2(MoO4)

被引：0

作者：

Nazarchuk E.V. ^{[1
]}

Krivovichev S.V. ^{[1
]}

Filatov S.K. ^{[1
]}

机构：

[1] St. Petersburg State University, St. Petersburg

来源：

Radiochemistry | 2004年 / 46卷 / 5期

关键词：

Anisotropy; Crystal Structure; Phase Transition; Thermal Expansion; Diffraction Analysis;

D O I：

10.1007/s11137-005-0005-x

中图分类号：

学科分类号：

摘要：

Phase transitions and thermal deformations of α- and β-Cs 2(UO2)2(MoO4)3 were studied by high-temperature X-ray diffraction analysis. In heating of α-Cs2(UO2)2(MoO4)3 to 625 ± 25°C, the reconstructive phase transition α → β proceeds. β -Cs2(UO2)2(MoO 4)3 is stable up to 700 ±25°C. The thermal expansion of both phases is sharply anisotropic: α11 = 10 × 10-6, α22 = 33 × 10-6, α 33 = 10 × 10-6, αV = 53 × 10-6 deg-1 for α -Cs(UO2) 2(MoO4)3 and α11 = 13 × 10-6, α33 = 3 × 10-6, αV = 31 × 10-6 deg-1 for β-Cs2 (UO2)2 (MoO4) 3. The anisotropy of thermal expansion is explained by features of the crystal structure of the compounds. © 2004 MAIK Nauka/ Interperiodica"."

引用

页码：438 / 440

页数：2

共 50 条

[1] Crystal chemistry of uranyl molybdates.: XI.: Crystal structures of Cs2[(UO2)(MoO4)2] and Cs2[(UO2)(MoO4)2](H2O)
Krivovichev, SV
Burns, PC
CANADIAN MINERALOGIST, 2005, 43 : 713 - 720
[2] High-temperature crystal chemistry of Na6(UO2)2O(MoO4)4
Nazarchuk E.V.
Siidra O.I.
Krivovichev S.V.
Radiochemistry, 2016, 58 (01) : 6 - 9
[3] Crystal chemistry of rubidium uranyl molybdates:: Crystal structures of Rb6[(UO2)(MoO4)4], Rb6[(UO2)2O(MoO4)4], Rb2[(UO2)(MoO4)2], Rb2[(UO2)2(MoO4)3] and Rb2[(UO2)6(MoO4)7(H2O)2]
Krivovichev, SV
Burns, PC
JOURNAL OF SOLID STATE CHEMISTRY, 2002, 168 (01) : 245 - 258
[4] Crystal structure of Tl2[(UO2)2(MoO 4)3] and crystal chemistry of the compounds M 2[(UO2)2(MoO4)3] (M = Tl, Rb, Cs)
Nazarchuk E.V.
Krivovichev S.V.
Burns P.C.
Radiochemistry, 2005, 47 (5) : 447 - 451
[5] Crystal chemistry of uranyl molybdates.: III.: New structural themes in Na6[(UO2)2O(MoO4)4] Na6[(UO2)(MoO4)4] and K6[(UO2)2O(MoO4)4]
Krivovichev, SV
Burns, PC
CANADIAN MINERALOGIST, 2001, 39 (01) : 197 - 206
[6] Crystal chemistry of uranyl molybdates.: VIII.: Crystal structures of Na3Tl3[(UO2)(MoO4)4], Na13-xTl3+x[(UO2)(MoO4)3]4(H2O)6+x (x=0.1), Na3Tl5[(UO2)(MoO4)3]2(H2O)3 and Na2[(UO2)(MoO4)2](H2O)4
Krivovichev, SV
Burns, PC
CANADIAN MINERALOGIST, 2003, 41 : 707 - 719
[7] Phase relations in the Na2MoO4-Cs2MoO4 and Na2MoO4-Cs2MoO4-ZnMoO4 systems, crystal structures of Cs3Na(MoO4)2 and Cs3NaZn2(MoO4)4
Zolotova, Evgeniya S.
Solodovnikova, Zoya A.
Yudin, Vasiliy N.
Solodovnikov, Sergey F.
Khaikina, Elena G.
Basovich, Olga M.
Korolkov, Iliya V.
Filatova, Irina Yu.
JOURNAL OF SOLID STATE CHEMISTRY, 2016, 233 : 23 - 29
[8] Phase equilibria in the Cs2MoO4-ZnMoO4-Zr(MoO4)2 system, Crystal structures and properties of new triple molybdates Cs2ZnZr(MoO4)4 and Cs2ZnZr2(MoO4)6
Tsyrenova, Galina D.
Solodovnikov, Sergey F.
Popova, Nadezhda N.
Solodovnikova, Zoya A.
Pavlova, Erzhena T.
Naumov, Dmitry Yu.
Lazoryak, Bogdan I.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2015, 81 : 93 - 99
[9] Crystal chemistry of uranyl molybdates.: IV.: The structures of M2[(UO2)6(MoO4)7(H2O)2] (M = Cs, NH4)
Krivovichev, SV
Burns, PC
CANADIAN MINERALOGIST, 2001, 39 : 207 - 214
[10] Synthesis and crystal structure of ammonium dimolybdatouranylate monohydrate (NH4)2[UO2(MoO4)2] • H2O
Andreev, GB
Antipin, MY
Fedoseev, AM
Budantseva, NA
RUSSIAN JOURNAL OF COORDINATION CHEMISTRY, 2001, 27 (03) : 208 - 210

← 1 2 3 4 5 →