STRUCTURE OF TA3N5 AT 16-K BY TIME-OF-FLIGHT NEUTRON-DIFFRACTION

被引：112

作者：

BRESE, NE ^{[1
]}

OKEEFFE, M ^{[1
]}

RAUCH, P ^{[1
]}

DISALVO, FJ ^{[1
]}

机构：

[1] CORNELL UNIV,DEPT CHEM,BAKER LAB,ITHACA,NY 14853

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1991年 / 47卷

关键词：

D O I：

10.1107/S0108270191005231

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Polycrystalline tritantalum pentanitride (Ta3N5) has been prepared from the reaction of TaCl5 with ammonia, and its structure has been refined from time-of-flight neutron diffraction data. M(r) = 612.88, orthorhombic, Cmcm, a = 3.8862 (1), b = 10.2118 (2), c = 10.2624 (3) angstrom, V = 407.26 (3) angstrom 3, Z = 4, D(x) = 9.99 g cm-3, neutron time-of-flight, Rietveld refinement, wR(p), R(p), reduced chi-2 = 0.061, 0.043, 4.21 for data collected at 16 K. Ta3N5 crystallizes with the pseudobrookite (Fe2TiO5) structure. Irregular TaN6 octahedra share edges and corners.

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页码：2291 / 2294

页数：4

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