Synthesis, crystal structures and chemical bonding of RE5xLixGe4 (RE = Nd, Sm and Gd; x≃ 1) with the orthorhombic Gd5Si4 type

被引：9

作者：

Suen, Nian-Tzu ^{[1
]}

You, Tae-Soo ^{[1
]}

Bobev, Svilen ^{[1
]}

机构：

[1] Univ Delaware, Dept Chem & Biochem, Newark, DE 19716 USA

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY | 2013年 / 69卷

基金：

美国国家科学基金会;

关键词：

EARTH-METAL GERMANIDES; LA-ND; MAGNETIC-PROPERTIES; CHEMISTRY; GE; PHASE; SI; TT;

D O I：

10.1107/S0108270112050032

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The syntheses and single-crystal and electronic structures of three new ternary lithium rare earth germanides, RE5xLixGe4 (RE = Nd, Sm and Gd; x similar or equal to 1), namely tetrasamarium lithium tetragermanide (Sm3.97Li1.03Ge4), tetraneodymium lithium tetragermanide (Nd3.97Li1.03Ge4) and tetragadolinium lithium tetragermanide (Gd3.96Li1.03Ge4), are reported. All three compounds crystallize in the orthorhombic space group Pnma and adopt the Gd5Si4 structure type (Pearson code oP36). There are six atoms in the asymmetric unit: Li1 in Wyckoff site 4c, RE1 in 8d, RE2 in 8d, Ge1 in 8d, Ge2 in 4c and Ge3 in 4c. One of the RE sites, i.e. RE2, is statistically occupied by RE and Li atoms, accounting for the small deviation from ideal RE4LiGe4 stoichiometry.

引用

页码：1 / +

页数：22

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