Synthesis and crystal structures of [K(18-crown-6)][Rb(18-crown-6)]2Ge9•6NH3,[Rb(18-crown-6)]3Ge9•9NH3 and [Cs(18-crown-6)]3Ge9•6NH3

被引：9

作者：

Suchentrunk, C ^{[1
]}

Korber, N ^{[1
]}

机构：

[1] Univ Regensburg, Inst Anorgan Chem, D-93053 Regensburg, Germany

来源：

INORGANICA CHIMICA ACTA | 2006年 / 359卷 / 01期

关键词：

zintl anion; germanide; low-temperature crystal structure analysis; liquid ammonia; solvate crystal;

D O I：

10.1016/j.ica.2005.09.043

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The new compounds [K(C12H24O6)][Rb(C12H24O6)](2)Ge-9 center dot 6NH(3), [Rb(C12H24O6)](3)Ge-9 center dot 9NE(3) and [Cs(C12H24O6)](3)Ge-9 center dot 6NH(3) were prepared by the extraction of binary and ternary phases of the nominal composition K2Rb2Ge9, Rb4Ge9 and K2Cs2Ge9 with liquid ammonia in the presence of 18-crown-6. The resulting crystals were characterized by low temperature X-ray structure analysis. All of them contain the 21 electron cluster Ge-9(3-), which is coordinated by alkali metal cations in ion-paired arrangements. The cages were assigned their specific point group symmetry and were compared with hitherto known structures. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：267 / 272

页数：6

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