Synthesis and crystal structure of (Ag,Pd)22Se6

被引：4

作者：

Laufek, F. ^{[1
]}

Vymazalova, A. ^{[1
]}

Chareev, D. A. ^{[2
]}

Kristavchuk, A. V. ^{[2
,4
]}

Drahokoupil, J. ^{[3
]}

Voronin, M. V. ^{[2
]}

机构：

[1] Czech Geol Survey, Prague 15200 5, Czech Republic

[2] RAS, Inst Expt Mineral, Chernogolovka 142432, Moscow Region, Russia

[3] ASCR, Vvi, Inst Phys, Prague 18221 8, Czech Republic

[4] Univ Dubna, Dubna 141980, Russia

来源：

POWDER DIFFRACTION | 2013年 / 28卷 / 01期

关键词：

(Ag; Pd)(22)Se-6; Rietveld refinement; crystal structure; Ag-Pd-Se system; X-ray powder diffraction data; CHRISSTANLEYITE;

D O I：

10.1017/S0885715612000929

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The (Ag,Pd)(22)Se-6 phase was synthesized from individual elements by silica glass tube technique and structurally characterized from powder X-ray diffraction data. The (Ag,Pd)(22)Se-6 phase crystallizes in Fm (3) over barm symmetry, unit-cell parameters: a = 12.3169(2) angstrom, V = 1862.55(5) angstrom(3), Z = 4, and D-c = 10.01 g/cm(3). The crystal structure of the (Ag,Pd)(22)Se-6 phase represents a stuffed 3a.3a.3a superstructure of the Pd structure (fcc), where only 4 from 108 available octahedral holes are occupied. Its crystal structure is related to the Cr23C6 structure type. (C) 2013 International Centre for Diffraction Data. [doi: 10.1017/S0885715612000929]

引用

页码：13 / 17

页数：5

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