Ternary antimonides LnM(1-x)Sb(2) with Ln=La-Nd,Sm,Gd,Tb and M=Mn,Co,Au,Zn,Cd

被引：57

作者：

Wollesen, P ^{[1
]}

Jeitschko, W ^{[1
]}

Brylak, M ^{[1
]}

Dietrich, L ^{[1
]}

机构：

[1] UNIV MUNSTER,INST ANORGAN CHEM,D-48149 MUNSTER,GERMANY

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1996年 / 245卷

关键词：

rare earth manganese antimonides; crystal structure determination; single crystal X-ray data;

D O I：

10.1016/S0925-8388(96)02391-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Of the title compounds 24 have been prepared and their lattice constants are reported. They are isotypic with the tetragonal structures variously designated as HfCuSi2-, CaMnBi2- and ZrCuSiAs-type (P4/nmm, Z = 2). Structure refinements from single-crystal X-ray data indicated considerable defects for the Mn and Cd positions in LaMn0.721(1)Sb-2 (a = 438.1(1) pm, c = 1077.2(6) pm, R = 0.024 for 314 structure factors and 16 variables), CeMn0.741(8)Sb-2 (a = 435.14(9) pm, c = 1069.0(4) pm, R = 0.022 for 233 F values and 13 variables) and LaCd0.7000(5)Sb-2 (a = 439.90(3) pm, c = 1099.7(1) pm, R = 0.044 for 488 structure factors and 13 variables), while the Au positions in LaAuSb2 (a = 443.6(1) pm, c = 1043.2(5) pm, R = 0.016 for 155 F values and 12 variables) are fully occupied.

引用

页码：L5 / L8

页数：4

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