Crystal structure of new rare-earth boron-rich solids:: REB28.5C4

被引:10
作者
Zhang, FX [1 ]
Xu, FF [1 ]
Mori, T [1 ]
Liu, QL [1 ]
Sato, A [1 ]
Tanaka, T [1 ]
机构
[1] Natl Inst Mat Sci, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan
关键词
rare earth compounds; crystal growth; crystal structure; X-ray diffraction; TEM;
D O I
10.1016/S0925-8388(01)01581-X
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
New rare-earth boron-rich solids of the composition REB28.5C4 (Re = Y, Ho, Er, Tm and Lu) were synthesized by solid state reaction and single crystals were grown using a high temperature metal solution method. The structure was solved by a direct method from single crystal X-ray diffraction data with Y-B-C as a representative. It shows a layered structure with trigonal symmetry (space group: R (3) over barm (No. 166)) and the unit cell parameters are: a = b = 5.6457(9) Angstrom, c = 56.8873(13) Angstrom. (C) 2001 Elsevier Science B.V. All tights reserved.
引用
收藏
页码:168 / 172
页数:5
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