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
收藏
页码：155 / 160
页数：6
相关论文
共 50 条
  • [41] Crystal structures in phases I and II of (ND4)3D(SeO4)2 and its phase transitions
    Fukami, T
    Chen, RH
    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1997, 58 (12) : 2113 - 2118
  • [42] Structural phase transition and crystal structure for (ND4)4D2(SeO4)3 at low temperature
    Fukami, T
    Chen, RH
    ACTA PHYSICA POLONICA A, 2001, 100 (01) : 53 - 65
  • [43] Dielectric study on the phase transition in (NH4)2PdCl4 and (ND4)2PdCl4
    Gesi, K
    FERROELECTRICS, 2001, 262 (1-4) : 1117 - 1122
  • [44] Phase transitions in the (NH4)2NbOF5 oxyfluoride
    Fokina, V. D.
    Bogdanov, E. V.
    Gorev, M. V.
    Molokeev, M. S.
    Pogorel'tsev, E. I.
    Flerov, I. N.
    Laptash, N. M.
    PHYSICS OF THE SOLID STATE, 2010, 52 (04) : 781 - 788
  • [45] Phase transitions in the (NH4)2NbOF5 oxyfluoride
    V. D. Fokina
    E. V. Bogdanov
    M. V. Gorev
    M. S. Molokeev
    E. I. Pogorel’tsev
    I. N. Flerov
    N. M. Laptash
    Physics of the Solid State, 2010, 52 : 781 - 788
  • [46] Structures and Phase Transitions in Rb2MoO4 and Rb2WO4
    Shigematsu, Hirotake
    Nomura, Keisuke
    Nishiyama, Katsura
    Tojo, Takeo
    Kawaji, Hitoshi
    Atake, Tooru
    Kawamura, Yukihiko
    Miyoshi, Tatsuki
    Matsushita, Yoshitaka
    Tanaka, Masahiko
    Mashiyama, Hiroyuki
    FERROELECTRICS, 2011, 414 : 195 - 200
  • [47] CRYSTAL STRUCTURE OF TRIPLE MOLYBDATE IN THE Rb2MoO4-Nd2(MoO4)3-Zr(MoO4)2 SYSTEM
    Chimitova, O. D.
    Bazarov, B. G.
    Klevtsova, R. F.
    Anshits, A. G.
    Fedorov, K. N.
    Dubentsov, A. V.
    Vereshchagina, T. A.
    Tushinova, Yu. L.
    Glinskaya, L. A.
    Bazarova, Zh. G.
    Gongorova, L. I.
    JOURNAL OF STRUCTURAL CHEMISTRY, 2010, 51 (01) : 173 - 176
  • [48] Thermodynamics, phase transitions and crystal structure of ammonium hexahalides:: comparative study of the heat capacity and thermodynamic properties of (NH4)2PtCl6, (ND4)2PtCl6, (NH4)2PtBr6, (ND4)2PtBr6, (NH4)2PdCl6, (ND4)2PdCl6, (NH4)2TeCl6, (ND4)2TeCl6, and (NH4)2RuCl6 from 5 K to 350 Ka
    Weir, RD
    Westrum, EE
    JOURNAL OF CHEMICAL THERMODYNAMICS, 2002, 34 (02): : 133 - 153
  • [49] Subsolidus phase relations in the Cs2MoO4-BaMoO 4-Nd2(MoO4)3 system
    Kozhevnikova, N.M., 2005, IAPC Nauka/Interperiodica (50)
  • [50] Crystal structure of triple molybdate in the Rb2MoO4—Nd2(MoO4)3—Zr(MoO4)2 system
    O. D. Chimitova
    B. G. Bazarov
    R. F. Klevtsova
    A. G. Anshits
    K. N. Fedorov
    A. V. Dubentsov
    T. A. Vereshchagina
    Yu. L. Tushinova
    L. A. Glinskaya
    Zh. G. Bazarova
    L. I. Gongorova
    Journal of Structural Chemistry, 2010, 51 : 173 - 176
12345