SYNTHESES OF RARE-EARTH DIOXYMONOCYANAMIDES (LN(2)O(2)CN(2), LN=LA, CE, PR, ND, SM, EU, GD)

被引：9
|
作者：
HASHIMOTO, Y
TAKAHASHI, M
KIKKAWA, S
KANAMARU, F
机构：
来源：
CHEMISTRY LETTERS | 1994年 / 10期
关键词：
D O I：
10.1246/cl.1994.1963
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A series of new compounds were prepared by heating Ln(2)O(3) (Ln=La, Nd, Sm, Eu, Gd), Pr6O11, or Ce-2(CO3)(3).8H(2)O in the presence of carbon under an ammonia atmosphere. Thermogravimetric and CHN analyses revealed that these compounds are of rare earth dioxymonocyanamides (Ln(2)O(2)CN(2)) They are classified into two structure types depending on Ln(3+) ionic radii, viz., type I (tetragonal) for Ln=La, Ce and type II (trigonal) for Ln=Ce, Pr, Nd, Sm, Eu, Gd. Ce2O2CN2 takes both structure types depending upon preparative temperature.
引用
收藏
页码：1963 / 1966
页数：4
相关论文
共 50 条
  • [1] Syntheses and crystal structures of trigonal rare-earth dioxymonocyanamides, Ln(2)O(2)CN(2) (Ln=Ce, Pr, Nd, Sm, Eu, Gd)
    Hashimoto, Y
    Takahashi, M
    Kikkawa, S
    Kanamaru, F
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 1996, 125 (01) : 37 - 42
  • [2] Synthesis and characterization of the rare-earth dicyanamides Ln[N(CN)2]3 with Ln = La, Ce, Pr, Nd, Sm, and Eu
    Jürgens, B
    Irran, E
    Schnick, W
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 2005, 178 (01) : 72 - 78
  • [3] Syntheses and crystal structures of trigonal rare-earth dioxymonocyanamides, Ln2O2CN2 (Ln = Dy, Ho, Er, Tm, Yb)
    Li, Min
    Yuan, Wenxia
    Wang, Jingfang
    Gu, Cong
    Zhao, Huaizhou
    [J]. POWDER DIFFRACTION, 2007, 22 (01) : 59 - 63
  • [4] Syntheses and crystal structures of new alkali metal rare-earth tellurides of the compositions KLnTe2 (Ln = La, Pr, Nd, Gd), RbLnTe2 (Ln = Ce, Nd) and CsLnTe2 (Ln = Nd)
    Stöwe, K
    Napoli, C
    Appel, S
    [J]. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 2003, 629 (11): : 1925 - 1928
  • [5] LN2GE2OF COMPOUNDS (LN=LA, ND, SM, EU, GD)
    JOUHETVETTER, G
    QUEYROUX, F
    [J]. MATERIALS RESEARCH BULLETIN, 1975, 10 (11) : 1201 - 1204
  • [6] Preparation and structure of the light rare-earth copper selenides LnCuSe2 (Ln = La, Ce, Pr, Nd, Sm)
    Ijjaali, I
    Mitchell, K
    Ibers, JA
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 2004, 177 (03) : 760 - 764
  • [7] THERMODYNAMIC STABILITY OF CUPRITE OF LN2CUO4 AND LNCUO2 (WHERE LN=LA, LN=PR, LN=ND, LN=SM, LN=EU, LN=GD) LANTHANIDES
    PETROV, AN
    ZUEV, AY
    CHEREPANOV, VA
    [J]. ZHURNAL FIZICHESKOI KHIMII, 1988, 62 (11): : 3092 - 3094
  • [8] Structural, Chemical, and Physical Properties of Rare-Earth Metal Rhodium Carbides LnRhC(2) (Ln = La, Ce, Pr, Nd, Sm)
    Hoffmann, Rolf-Dieter
    Jeitschko, Wolfgang
    Boonk, Ludger
    [J]. CHEMISTRY OF MATERIALS, 1989, 1 (06) : 580 - 586
  • [9] THE SYSTEMS LN2O3-V2O5-NB2O5 (LN=CE, PR, ND, SM, EU)
    ZUEV, MG
    FOTIEV, AA
    [J]. INORGANIC MATERIALS, 1988, 24 (12): : 1754 - 1756
  • [10] Screening of factors influencing the photocatalytic activity of TiO2:Ln (Ln = La, Ce, Pr, Nd, Sm, Eu and Gd) in the degradation of dyes
    Villabona-Leal, E. G.
    Lopez-Neira, J. P.
    Pedraza-Avella, J. A.
    Perez, Elias
    Meza, Octavio
    [J]. COMPUTATIONAL MATERIALS SCIENCE, 2015, 107 : 48 - 53
12345