Study of the Na2O-MoO3 system.: Na6Mo11O36 -: a new oxide with anatase-related structure, and the crystal structures of Na2MoO4

被引：38

作者：

Bramnik, KG ^{[1
]}

Ehrenberg, H ^{[1
]}

机构：

[1] TH Darmstadt, FG Strukturforsch, FB Mat & Geowissensch, Inst Mat Sci, D-64287 Darmstadt, Germany

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2004年 / 630卷 / 8-9期

关键词：

sodium molybdates; anatase-type structure; structure solution;

D O I：

10.1002/zaac.200400119

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new sodium molybdate, Na6Mo11O36, has been synthesized, and its crystal structure was determined by single crystal Xray diffraction (space group P-1; a 7.2722(6) Angstrom, b = 22.376(1) Angstrom, c = 9.6686(8) Angstrom, alpha = 89.98(1)degrees, beta = 112.12(1)degrees, gamma = 90.29(1)degrees; Z = 2). The compound can be considered as a new structure type related to the anatase structure. Na2MoO4 exists in four different modifications between room temperature and the melting point. The alpha-phase is isostructural with spinel-type Na2WO4, the gamma-phase with thenardite, Na2SO4 (V), and the -phase with Na2SO4 (I). The diffraction patterns of beta-Na2MoO4 are similar to those of the gamma-phase, but could not be indexed.

引用

页码：1336 / 1341

页数：6

共 19 条

[1] PHASE RELATIONS, DOPANT EFFECTS, STRUCTURE, AND HIGH ELECTRICAL-CONDUCTIVITY IN NA2WO4-NA2MOO4 SYSTEM [J].

BOTTELBERGHS, PH ;

VANBUREN, FR .

JOURNAL OF SOLID STATE CHEMISTRY, 1975, 13 (03) :182-191

[2]

CAILLET P, 1967, B SOC CHIM FR, P4750

[3] THE CRYSTAL-STRUCTURE OF A SODIUM MOLYBDENUM OXIDE, NA6MO10O33, CONTAINING CROSS-LINKED CHAINS OF OCTAHEDRA AND SQUARE PYRAMIDS [J].

GATEHOUSE, BM ;

JENKINS, CE ;

MISKIN, BK .

JOURNAL OF SOLID STATE CHEMISTRY, 1983, 46 (03) :269-274

[4] CRYSTAL-STRUCTURES OF CESIUM PENTAMOLYBDATE, CS2MO5O16, AND CESIUM HEPTAMOLYBDATE, CS2MO7O22 [J].

GATEHOUSE, BM ;

MISKIN, BK .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1975, 31 (MAY15) :1293-1299

[5]

GROSCHUFF, 1908, Z ANORG CHEM, V58, P113

[6]

Haas H, 2001, Z ANORG ALLG CHEM, V627, P755

[7]

HOERMANN F, 1928, Z ANORG ALLG CHEM, V117, P145

[8]

*ICDD, 260966 ICDD

[9]

*ICDD, 260968 ICDD

[10]

*ICDD, 260967 ICDD

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