The synthesis and crystal structures of the first rare-earth alkaline-earth selenite chlorides MNd10(SeO3)12Cl8 (M = Ca and Sr)

被引：10

作者：

Berdonosov, P. S. ^{[1
]}

Olenev, A. V. ^{[1
]}

Dolgikh, V. A. ^{[1
]}

Lightfoot, P. ^{[2
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119992, Russia

[2] Univ St Andrews, Sch Chem, EaStChem, St Andrews KY16 9ST, Fife, Scotland

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2007年 / 180卷 / 11期

基金：

俄罗斯基础研究基金会;

关键词：

Selenite chloride; Rare earth compound; Crystal structure;

D O I：

10.1016/j.jssc.2007.08.019

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two new alkaline-earth Nd selenite chlorides MNd10(SeO3)(12)Cl-8 (M = Ca, Sr) were obtained using crystal growth from alkaline-earth chloride melts in quartz tubes. These new compounds crystallize in the orthorhombic system in space group C cca (# 68). The compounds were studied by energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction. It was shown that both compounds adopt the same structure type, constructed by complex [M-11(SeO3)(12)](8+) slabs separated by chloride anion layers perpendicular to the longest cell parameter. The SeO3 groups show a pyramidal shape and may be described as SeO3E tetrahedra. Such SeO3 groups decorate the Nd-O skeletons forming the [M-11(SeO3)(12)](8+) slabs. (C) 2007 Elsevier Inc. All rights reserved.

引用

页码：3019 / 3025

页数：7

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