Dimers [Al2N6]12- and chains ∞1[AlN 4/23-] in the crystal structures of Ca6[Al2N6] and Ba3[Al2N4]

被引：25

作者：

Ludwig, M

Niewa, R

Kniep, R

机构：

[1] Tech Univ Darmstadt, Eduard Zintl Inst, D-64289 Darmstadt, Germany

[2] Max Planck Inst Chem Phys Fester Stoffe, VEM Sachsenwerk, D-01257 Dresden, Germany

来源：

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 1999年 / 54卷 / 04期

关键词：

nitridoaluminates; preparation; crystal structure;

D O I：

10.1515/znb-1999-0407

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Pale yellow transparent single crystals of Ca-6[Al(2)Ns] (P2(1)/c, No. 14. a = 693.7(3), b = 614.9(3), c = 987.1(5) pm, beta = 94.01(5)degrees; Z = 4) and colourless transparent single crystals of Ba-3[Al2N4] (Pnna, No. 52, a = 617.9(2), b = 1005.2(4), c = 1023.0(4) pm; Z = 4) were obtained from reactions of mixtures of the representative metals with nitrogen at T-max 1000 degrees C. The crystal structure of Ca-6[Al2N6] contains isolated units [Al2N6](12-) built Of two edge-sharing tetrahedra. Ba-3[Al2N4] is an isotype of Sr-3[Al2N4] The crystal structure contains infinite chains (1)(infinity)[AlN4/23-] of trans edge-sharing tetrahedra.

引用

页码：461 / 465

页数：5

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