The structure and phase transitions in oxyfluoride (ND4)2MoO2F4

被引：3

作者：

Bogdanov, Evgeniy V. ^{[1
,2
]}

Mel'nikova, Svetlana V. ^{[1
]}

Pogoreltsev, Evgeniy I. ^{[1
,3
]}

Molokeev, Maxim S. ^{[1
,4
]}

Flerov, Igor N. ^{[1
,3
]}

机构：

[1] RAS, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia

[2] Krasnoyarsk State Agr Univ, Krasnoyarsk 660049, Russia

[3] Siberian State Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660074, Russia

[4] Far Eastern State Transport Univ, Khabarovsk 680021, Russia

来源：

SOLID STATE SCIENCES | 2016年 / 61卷

基金：

俄罗斯基础研究基金会;

关键词：

(NH4)(2)MOO2F4; (NH4)(2)WO2F4; DIAGRAMS; CRYSTALS; DISORDER;

D O I：

10.1016/j.solidstatesciences.2016.08.012

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Single crystals of (ND4)(2)MoO2F4 containing 95% deuterium were produced by repeated recrystallization of (NH4)(2)MoO2F4 in heavy water. The effect of deuteration on the parameters of successive phase transitions was investigated by differential scanning microcalorimetry and polarization optics. X-ray analysis of the original and distorted phases was performed. It was found that deuteration does not change the sequence of crystal phases typical for (NH4)(2)MoO2F4, but leads to a shift in the phase transition Cmcm -> Pnma towards the tricritical point. The mechanism of phase transitions in (ND4)(2)MoO2F4 was associated with both the ordering and the displacement of atoms. (C) 2016 Elsevier Masson SAS. All rights reserved.

引用

页码：155 / 160

页数：6

共 50 条

[21] PHYSICAL PROPERTIES OF (NH4)2ZnCl4 AND (ND4)2ZnCl4 NEAR THE PHASE TRANSITIONS.
Mel'nikova, S.V.
Iskornev, I.M.
Zherebtsova, L.I.
Kot, L.A.
Anistratov, A.T.
Soviet Physics, Solid State (English translation of Fizika Tverdogo Tela), 1984, 26 (03): : 468 - 471
[22] Investigation into phase diagrams of the fluorine-oxygen system: Ferroelastic-antiferroelectric (NH4)2WO2F4-(NH4)2MoO2F4
Bogdanov, E. V.
Pogoreltsev, E. I.
Mel'nikova, S. V.
Gorev, M. V.
Flerov, I. N.
Molokeev, M. S.
Kartashev, A. V.
Kocharova, A. G.
Laptash, N. M.
PHYSICS OF THE SOLID STATE, 2013, 55 (02) : 409 - 418
[23] PHYSICAL-PROPERTIES OF (NH4)2ZNCL4 AND (ND4)2ZNCL4 IN THE REGION OF PHASE-TRANSITIONS
MELNIKOVA, SV
ISKORENEV, IM
ZHEREBTSOVA, LI
KOT, LA
ANISTRATOV, AT
FIZIKA TVERDOGO TELA, 1984, 26 (03): : 776 - 780
[24] On the phase transitions in RbIn(MoO4)2
Zapart, M. B.
Zapart, W.
UKRAINIAN JOURNAL OF PHYSICAL OPTICS, 2012, 13 (04) : 196 - 203
[25] Raman scattering study of ND4+-ion motion and structural phase transitions in (ND4)(2)PbCl6
Shi, JR
Xu, YC
Kume, Y
Arnscheidt, B
Pelzl, J
Wu, X
CHINESE PHYSICS LETTERS, 1996, 13 (05) : 394 - 396
[26] Disorder and phase transitions in oxyfluoride (NH4)3Ta(O2)2F4
Flerov, I. N.
Gorev, M. V.
Fokina, V. D.
Bovina, A. F.
Bogdanov, E. V.
Pogoreltsev, E. I.
Laptash, N. M.
JOURNAL OF FLUORINE CHEMISTRY, 2011, 132 (10) : 713 - 718
[27] Mechanism and nature of phase transitions in the (NH4)3MoO3F3 oxyfluoride
Flerov, I. N.
Fokina, V. D.
Bovina, A. F.
Bogdanov, E. V.
Molokeev, M. S.
Kocharova, A. G.
Pogorel'tsev, E. I.
Laptash, N. M.
PHYSICS OF THE SOLID STATE, 2008, 50 (03) : 515 - 524
[28] Mechanism and nature of phase transitions in the (NH4)3MoO3F3 oxyfluoride
I. N. Flerov
V. D. Fokina
A. F. Bovina
E. V. Bogdanov
M. S. Molokeev
A. G. Kocharova
E. I. Pogorel’tsev
N. M. Laptash
Physics of the Solid State, 2008, 50 : 515 - 524
[29] Phase equilibria in the Tl2MoO4-Nd2(MoO4)3-Hf(MoO4)2 system and the crystal structure of double molybdate TlNd(MoO4)2
V. G. Grossman
B. G. Bazarov
R. F. Klevtsova
S. F. Solodovnikov
L. A. Glinskaya
K. N. Fedorov
Zh. G. Bazarova
Russian Journal of Inorganic Chemistry, 2008, 53 : 1660 - 1665
[30] Phase Equilibria in the Tl2MoO4-Nd2(MoO4)3-Hf(MoO4)2 System and the Crystal Structure of Double Molybdate TlNd(MoO4)2
Grossman, V. G.
Bazarov, B. G.
Klevtsova, R. F.
Solodovnikov, S. F.
Glinskaya, L. A.
Fedorov, K. N.
Bazarova, Zh. G.
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2008, 53 (10) : 1660 - 1665

← 1 2 3 4 5 →