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首页> 外文期刊>Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences >On the crystal chemistry of tellurates containing Mn2+ in the cationic and anionic part of the crystal structure: (Mn2,4Cu0,6)TeO6, Ba2MnTeO6 and Pb(Mn0,5Te0,5)O-3 [German]
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On the crystal chemistry of tellurates containing Mn2+ in the cationic and anionic part of the crystal structure: (Mn2,4Cu0,6)TeO6, Ba2MnTeO6 and Pb(Mn0,5Te0,5)O-3 [German]

机译:关于在晶体结构的阳离子和阴离子部分中含有Mn2 +的碲酸盐的晶体化学:(Mn2,4Cu0,6)TeO6,Ba2MnTeO6和Pb(Mn0,5Te0,5)O-3 [德语]

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摘要

Single crystals of (Mn2.4Cu0.6)TeO6 (I), Ba2MnTeO6 (II) and Pb(Mn0.5Te0.5)O-3 (III) have been prepared by crystallization from fluxes. X-ray investigations led to rhombohedric symmetry (I): R (3) over tilde, (II): R (3) over tilde m with the trigonal lattice constants (I): a = 8.826(1), c = 10.687(2) Angstrom, Z = 2. (II): a = 5.817(8), c = 14.244(3) Angstrom, Z = 3. Compound (III) crystallizes with cubic symmetry P4 (3) over bar m, a = 4.045(3) Angstrom, Z = 1. (I) is the first example of a manganese(II) tellurate and belongs to the structure type of A(3)XO(6) compounds like (Mn2In)SbO6, Mn3WO6 and Ca3UO6. (II) exemplifies an ordered and (III) a disordered variation of the perovskites. [References: 20]
机译:(Mn2.4Cu0.6)TeO6(I),Ba2MnTeO6(II)和Pb(Mn0.5Te0.5)O-3(III)的单晶是通过从助熔剂中结晶而制得的。 X射线研究导致菱形对称(I):波浪号上的R(3),(II):波浪号m上的三角网格对称性(I):a = 8.826(1),c = 10.687( 2)埃,Z =2。(II):a = 5.817(8),c = 14.244(3)埃,Z =3。化合物(III)在bar m处以立方对称P4(3)结晶,a = 4.045 (3)埃,Z =1。(I)是碲酸锰(II)的第一个例子,属于A(3)XO(6)化合物的结构类型,例如(Mn2In)SbO6,Mn3WO6和Ca3UO6。 (II)举例说明钙钛矿的有序变化,(III)举例说明钙钛矿的无序变化。 [参考:20]

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