Infrared spectroscopy and the structure of rare-earth chromium borates RCr3(BO3)4 (R = La-Er)

被引：0
|
作者：
V. S. Kurazhkovskaya
E. A. Dobretsova
E. Yu. Borovikova
V. V. Mal’tsev
N. I. Leonyuk
机构：
[1] M. V. Lomonosov Moscow State University,
来源：
Journal of Structural Chemistry | 2011年 / 52卷
关键词：
IR spectroscopy; factor group analysis; rare-earth chromium borates;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Rare-earth chromium borates RCr3(BO3)4, where R = La-Er, obtained as a result of spontaneous solutionmelt crystallization and belonging to two polytypic modifications (R32 (D37) and C2/c (C2h6) space groups) are studied by infrared spectroscopy with the factor group analysis of vibrations. Borates with R = La-Nd are shown to crystallize in the monoclinic C2/c space group. Borates with R = Sm-Er in the 1:1 ratio of batch and solvent form rhombohedral (R32 space group) and monoclinic (C2/c space group) phases at the 2.3:1 ratio, except EuCr3(BO3)4 and GdCr3(BO3)4 that have the rhombohedral structure under all crystallization conditions. Both rhombohedral and monoclinic polytypes may contain oppositely ordered layers. Y-, Tm-, Yb-, Lu-chromium borates are not formed.
引用
收藏
页码：699 / 707
页数：8
相关论文
共 50 条
  • [1] Infrared spectroscopy and the structure of rare-earth chromium borates RCr3(BO3)4 (R = La-Er)
    Kurazhkovskaya, V. S.
    Dobretsova, E. A.
    Borovikova, E. Yu.
    Mal'tsev, V. V.
    Leonyuk, N. I.
    JOURNAL OF STRUCTURAL CHEMISTRY, 2011, 52 (04) : 699 - 707
  • [2] Spectroscopic investigation of rare-earth chromium borates RCr3(BO3)4 (R = Nd, Sm)
    K. N. Boldyrev
    E. P. Chukalina
    N. I. Leonyuk
    Physics of the Solid State, 2008, 50 : 1681 - 1683
  • [3] Spectroscopic investigation of rare-earth chromium borates RCr3(BO3)4 (R = Nd, Sm)
    Boldyrev, K. N.
    Chukalina, E. P.
    Leonyuk, N. I.
    PHYSICS OF THE SOLID STATE, 2008, 50 (09) : 1681 - 1683
  • [4] Vibrational spectra and factor group analysis of rare-earth chromium borates, RCr3(BO3)4, with R = La-Ho
    Borovikova, E. Yu.
    Dobretsova, E. A.
    Boldyrev, K. N.
    Kurazhkovskaya, V. S.
    Maltsev, V. V.
    Leonyuk, N. I.
    VIBRATIONAL SPECTROSCOPY, 2013, 68 : 82 - 90
  • [5] Crystal growth, structure, infrared spectroscopy, and luminescent properties of rare-earth gallium borates RGa3(BO3)4, R = Nd, Sm-Er, Y
    Borovikova, Elena Yu.
    Boldyrev, Kirill N.
    Aksenov, Sergey M.
    Dobretsova, Elena A.
    Kurazhkovskaya, Victoria S.
    Leonyuk, Nikolay I.
    Savon, Alexander E.
    Deyneko, Dina V.
    Ksenofontov, Dmitry A.
    OPTICAL MATERIALS, 2015, 49 : 304 - 311
  • [6] IR spectroscopy of rare-earth aluminum borates RAl3(BO3)4 (R = Y, Pr-Yb)
    Dobretsova, E. A.
    Borovikova, E. Yu
    Boldyrev, K. N.
    Kurazhkovskaya, V. S.
    Leonyuk, N. I.
    OPTICS AND SPECTROSCOPY, 2014, 116 (01) : 77 - 83
  • [7] IR spectroscopy of rare-earth aluminum borates RAl3(BO3)4 (R = Y, Pr-Yb)
    E. A. Dobretsova
    E. Yu. Borovikova
    K. N. Boldyrev
    V. S. Kurazhkovskaya
    N. I. Leonyuk
    Optics and Spectroscopy, 2014, 116 : 77 - 83
  • [8] PREPARATION AND SOME PROPERTIES OF RARE-EARTH IRON BORATES, RFE3(BO3)4
    TAKAHASHI, T
    YAMADA, O
    AMETANI, K
    MATERIALS RESEARCH BULLETIN, 1975, 10 (02) : 153 - 156
  • [9] Preparation of some rare-earth borates (R, Bi) Al, Ga)3(BO3) with huntite structure by flux method
    Chani, Valery I., 1600, Publ by JJAP, Minato-ku, Japan (33):
  • [10] RARE EARTH BORATES TCR(BO3)2 OF DOLOMITE STRUCTURE
    VICAT, J
    ALEONARD, S
    BULLETIN DE LA SOCIETE FRANCAISE MINERALOGIE ET DE CRISTALLOGRAPHIE, 1968, 91 (03): : 293 - &
12345