Gd4(BO2)O5F - a gadolinium borate fluoride oxide comprising a linear BO2 moiety

被引：21
|
作者：
Hoeppe, Henning A. [1 ]
机构：
[1] Univ Augsburg, Inst Phys, D-86159 Augsburg, Germany
来源：
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 2015年 / 70卷 / 11期
关键词：
borate; crystal structure; gadolinium; single crystal; CRYSTAL-STRUCTURE; VIBRATIONAL-SPECTRA; ORDERED DISTRIBUTION; AB-INITIO; ANIONS; LN; ALPHA-SR(PO3)(2); BOROSULFATES; ALKALI; TB;
D O I：
10.1515/znb-2015-0112
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Gadolinium borate fluoride oxide Gd-4(BO2)O5F crystallises in space group Pmmn (no. 59, a = 1574.6(4), b = 381.42(7), c = 660.88(11) pm, 565 refl., 28 parameters, R-1 = 0.039, wR(2) = 0.128, twin refinement) and comprises linear BO2- anions between closely packed [GdO] layers formed by OGd4 tetrahedra and terminated by oxygen and fluorine atoms. The crystal structure's relationship with the NiAs type is illustrated. The Raman spectrum recorded on a single crystal of Gd-4(BO2)O5F comprises a single peak at 1364 cm(-1) assigned to the only Raman-active vibrational mode nu(s) of the linear triatomic O-B-O units besides very weak peaks at 805 and 2083 cm(-1) (presumably the respective delta and nu(as) modes).
引用
收藏
页码：769 / 774
页数：6
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