2 REPRESENTATIVES OF THE ALPHA-LIFEO2 TYPE - LIINO2 AND ALPHA-LIYBO2

被引:20
作者
GLAUM, H [1 ]
VOIGT, S [1 ]
HOPPE, R [1 ]
机构
[1] UNIV GIESSEN,INST ANORGAN & ANALYT CHEM,HEINRICH BUFF RING 58,W-6300 GIESSEN,GERMANY
来源
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1991年 / 598卷 / 7-8期
关键词
LITHIUM INDATE(III); ALPHA-LITHIUM YTTERBATE(III); CRYSTAL STRUCTURES; MAPLE; SPLIT POSITION;
D O I
10.1002/zaac.19915980113
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Single crystals of LiInO2 (well ground mixtures of 'In2O':KO2:Li2O = 1:1.8:1, Ag-tube, 22d, 520-degrees-C); and alpha-LiYbO2 (Yb2O3:Li2O = 1:1.1, Ni-tube, 30d, 1150-degrees-C) were prepared for the first time from mixtures of the binary oxides. The determination of the structure confirmed the alpha-LiFeO2 type. Both oxides crystallize in the space group I 4(1)/amd (Z = 4); LiInO2:a = 431.2(1) pm c = 934.2(2) pm; c/a = 2.167; 123 I0(hkl), R = 3.6 %, R(w) = 2.9 %. alpha-LiYbO2:a = 438.7(1) pm c = 1006.7(2) pm; c/a = 2.295, 130 I0(hkl), R = 4.4 %, R(w) = 3.6 %. The Madelung part of lattice energy, MAPLE and characteristics of this kind of structure are discussed.
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页码:129 / 138
页数:10
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