Crystal Structure of [Al4(OH)6(H2O)12][Al(H2O)6]2Br12: A New Polyaluminum Compound

被引：16

作者：

Sun, Zhong ^{[1
]}

Wang, Hui ^{[1
]}

Feng, Huijun ^{[1
]}

Zhang, Ying ^{[1
]}

Du, Shuangyan ^{[1
]}

机构：

[1] Inner Mongolia Univ, Coll Chem & Chem Engn, Hohhot 010021, Peoples R China

来源：

INORGANIC CHEMISTRY | 2011年 / 50卷 / 19期

关键词：

ALUMINUM; MODEL; HYDROLYSIS; SELENATE; SULFATE; SALTS; AL-30;

D O I：

10.1021/ic2002749

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A vertex-shared tetrahedral [Al-4(OH)(6)(H2O)(12)](6+) (Al-4) and a disordered [Al(H2O)(6)](3+) (Al-1) that coexist in a 1:2 ratio within each unit cell were observed in the structure of [Al-4(OH)(6)(H2O)(12)][Al(H2O)(6)](2)Br-12, which crystallized in a cubic Fd (3) over barm space group from a spontaneously hydrolyzed solution of AlBr3. The former is composed of four AlO6 octahedra that are connected to each other by sharing three vertexes of each octahedron and form a large regular tetrahedron with. ideal T-d symmetry. The central Al3+ ion of the latter is coordinated by 6 disordered OH2 molecules, that form a core-shell structure with ideal D-3d symmetry.

引用

页码：9238 / 9242

页数：5

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