Li13.7Rh8Si18.3 - A Non-Centrosymmetric Variant of the R-Phase Structure

被引：6

作者：

Dinges, Tim ^{[1
]}

Hoffmann, Rolf-Dieter ^{[1
]}

Poettgen, Rainer ^{[1
]}

机构：

[1] Univ Munster, Inst Anorgan & Analyt Chem, D-48149 Munster, Germany

来源：

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 2010年 / 65卷 / 05期

关键词：

Lithium; Silicide; Group-Subgroup; Crystal Structure; QUASI-CRYSTALLINE APPROXIMANTS; STANNIDES LITSN4 T; NEUTRON-DIFFRACTION; ABSOLUTE-CONFIGURATION; PHYSICAL-PROPERTIES; TERNARY PHASES; ZINTL-PHASES; B-GROUP; X-RAY; LITHIUM;

D O I：

10.1515/znb-2010-0501

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The suicide Li13.7Rh8Si18.3 was synthesized from the elements in a sealed niobium ampoule at 1370K followed by slow cooling. The sample was studied by powder and single-crystal X-ray diffraction. Li13.7Rh8Si18.3 crystallizes with a non-centrosymmetric occupancy variant of the R-phase structure Mg-32(Al, Zn)(49): I23, a = 1306.9(2) pm, wR2 = 0.0447, 1286 F-2 values, and 53 variables. Striking structural motifs of the Li13.7Rh8Si18.3 structure are M-12 icosahedra and M-60 buckyball-type clusters (M = Si + Rh), both partially built up from mixed-occupied sites.

引用

页码：537 / 542

页数：6

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