Ba2Gd2(Si4O13): a silicate with finite Si4O13 chains

被引：28

作者：

Wierzbicka-Wieczorek, Maria ^{[1
]}

Kolitsch, Uwe ^{[2
]}

Tillmanns, Ekkehart ^{[1
]}

机构：

[1] Univ Vienna, Inst Mineral & Kristallog, Geozentrum, A-1090 Vienna, Austria

[2] Nat Hist Museum Wien, Mineral Petrograph Abt, A-1010 Vienna, Austria

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY | 2010年 / 66卷

基金：

奥地利科学基金会;

关键词：

CRYSTAL-STRUCTURE;

D O I：

10.1107/S0108270110002842

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The title compound, dibarium digadolinium(III) tetrasilicate, crystallized from a molybdate-based flux. It represents a new structure type and contains finite zigzag-shaped C-2-symmetric Si4O13 chains and Gd2O12 dimers built of edge-sharing GdO7 polyhedra. The [9+1]-coordinated Ba atoms are located in voids in the atomic arrangement. All atoms are in general positions except for one O atom, which lies on a twofold axis. The structure is compared with those of the few other known tetrasilicates.

引用

页码：I29 / I32

页数：4

共 26 条

[1] Novel layered uranyl arsenates, Ag6[(UO2)2(As2O7)(As4O13)] and A6I[(UO2)2(AsO4)2(As2O7)] (AI-Ag and Na): first observation of a linear As4O136- anion and structure type evolution [J].

Alekseev, Evgeny V. ;

Krivovichev, Sergey V. ;

Depmeier, Wulf .

JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (17) :2583-2587

[2]

[Anonymous], 2006, SADABS

[3]

[Anonymous], 2008, APEX2 SAINT

[4] BOND-VALENCE PARAMETERS FOR SOLIDS [J].

BRESE, NE ;

OKEEFFE, M .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1991, 47 :192-197

[5] TRIMETHYLSILYLATION OF AG10SI4O13 - CYCLIZATION OF THE LINEAR-CHAIN ANION SI4O13-(10)- [J].

CALHOUN, HP ;

MASSON, CR ;

JANSEN, M .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1980, (12) :576-577

[6] Dipotassium tetrachromate(VI), K2Cr4O13 [J].

Casari, BM ;

Langer, V .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 2005, 61 :I117-I119

[7] Flux synthesis, crystal structure, and luminescence properties of a new europium fluoride-silicate:: K5Eu2FSi4O13 [J].

Chiang, Pei-Yun ;

Lin, Tsai-Wei ;

Dai, Jian-Hung ;

Chang, Bor-Chen ;

Lii, Kwang-Hwa .

INORGANIC CHEMISTRY, 2007, 46 (09) :3619-3622

[8] THE CRYSTAL-STRUCTURE OF BA3V4O13 [J].

GATEHOUSE, BM ;

GUDDAT, LW ;

ROTH, RS .

JOURNAL OF SOLID STATE CHEMISTRY, 1987, 71 (02) :390-395

[9] AG18(SIO4)2(SI4O13), THE 1ST MIXED-ANION SILVER(I) SILICATE [J].

HEIDEBRECHT, K ;

JANSEN, M .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1991, 597 (06) :79-86

[10] CORRECTION [J].

HEIDEBRECHT, K .

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 1991, 606 (15) :242-242

← 1 2 3 →