The crystal structure of Yb2(SO4)3•3H2O and its decomposition product, β-Yb2(SO4)3

被引：8

作者：

Mills, Stuart J. ^{[1
,2
]}

Petricek, Vaclav ^{[3
]}

Kampf, Anthony R. ^{[2
]}

Herbst-Imer, Regine ^{[4
]}

Raudsepp, Mati ^{[1
]}

机构：

[1] Univ British Columbia, Dept Earth & Ocean Sci, Vancouver, BC V6T 1Z4, Canada

[2] Nat Hist Museum Los Angeles Cty, Dept Mineral Sci, Los Angeles, CA 90007 USA

[3] Acad Sci Czech Republ, Inst Phys, Vvi, Prague 18221, Czech Republic

[4] Univ Gottingen, Dept Struct Chem, D-37077 Gottingen, Germany

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2011年 / 184卷 / 09期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Crystal structure; Hydrothermal synthesis; Rare earth; Sulphate; Ytterbium; Yttrium; THERMAL-BEHAVIOR; SULFATE; CHEMISTRY; YB;

D O I：

10.1016/j.jssc.2011.06.018

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Yb-2(SO4)(3)center dot 3H(2)O, synthesised by hydrothermal methods at 220(2) degrees C, has been investigated by single crystal X-ray diffraction. Yb-2(SO4)(3)center dot 3H(2)O crystallises in space group Cmc2(1) and is isostructural with Lu-2(SO4)(3)center dot 3H(2)O. The crystal structure has been refined to R-1=0.0145 for 3412 reflections [F-o > 3 sigma(F)]. and 0.0150 for all 3472 reflections. The structure of Yb-2(SO4)(3)center dot 3H(2)O is a complex framework of YbO6 octahedra, YbO8 and YbO5(H2O)(3) polyhedra and SO4 tetrahedra. Thermal data shows that Yb-2(SO4)(3)center dot 3H(2)O decomposes between 120 and 190 degrees C to form beta-Yb-2(SO4)(3). The structure of a twinned crystal of beta-Yb-2(SO4)(3) was solved and refined using an amplimode refinement in R3c with an R-1=0.0755 for 8944 reflections [F-o > 3 sigma(F)], and 0.1483 for all 16,361 reflections. beta-Yb-2(SO4)(3) has a unique structural topology based on a 3D network of pinwheels. (C) 2011 Elsevier Inc. All rights reserved.

引用

页码：2322 / 2328

页数：7

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