DIMERIC ZINTL ANIONS [SN2AS6]10- AND [SN2SB6]10- IN ALKALINE COMPOUNDS

被引：26

作者：

EISENMANN, B

KLEIN, J

机构：

[1] Eduard-Zintl-Institut, Abteilung II für Anorganische Chemie der Technischen Hochschule Darmstadt, W-6100 Darmstadt

来源：

ZEITSCHRIFT FUR KRISTALLOGRAPHIE | 1991年 / 196卷 / 1-4期

关键词：

ALKALIARSENIDOSTANNATES; ALKALIANTIMONIDOSTANNATES; ZINTL PHASES; CRYSTAL STRUCTURE;

D O I：

10.1524/zkri.1991.196.1-4.213

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The compounds have been grown from molten stoichiometric mixtures of the elements. Na5[SnAs3], K5[SnSb3] and Na4K[SnSb3] are isotypic and belong to the Na5[SiP3]-type[monoclinic, P2(1)/n (No. 14)] with the lattice constants: Na5[SnAs3]: a = 1371.6(6) pm, b = 764.2(4) pm, c = 852.7(5) pm, beta = 90.3(1)-degrees, Z = 4 K5[SnSb3]: a = 1602.2(6) pm, b = 866.5(4) pm, c = 974.9(5) pm, beta = 90.1(1)-degrees, Z = 4 Na4K[SnSb3]: a = 1491.0(6) pm, b = 837.5(4) pm, c = 909.1(5) pm, beta = 90.0(1)-degrees, Z = 4. Na2K3[SnAs3] [orthorhombic, Cmca (No. 64), a = 2043.5(9) pm, b = 682.0(3) pm, c = 1535.1(5) pm, Z = 8] forms a new structure type, which can be derived from a distorted cubic close packing of the As atoms. In both structure types two SnAs4- (SnSb4)tetrahedra are connected by a common edge forming isolated [Sn2As6]10- ([Sn2Sb6]10-)-anions. The compounds belong to the Zintl phases.

引用

页码：213 / 229

页数：17

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