Syntheses and crystal structures of four new annnoniates with heptaarsenide (As3-7) anions

被引：20

作者：

Hanauer, T ^{[1
]}

Grothe, M ^{[1
]}

Reil, M ^{[1
]}

Korber, N ^{[1
]}

机构：

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

来源：

HELVETICA CHIMICA ACTA | 2005年 / 88卷 / 05期

关键词：

D O I：

10.1002/hlca.200590088

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The syntheses and X-ray single-crystal low-temperature structures of the four new ammoniates [Li(NH3)(4)](3)AS(7) (.) NH3 (1), [Rb(18-crown-6)](3)AS(7) (.) 8 NH3 (2). CS(3)AS(7)(.)6 NH3 (3), and (Ph4P)(2)CsAS(7)(.)5 NH3 (4) are reported. The compounds were obtained by either direct reduction of As with Li/Cs in liquid NH3, solvation of Cs4As6/Rb4As6 in liquid NH3, or by extraction of solid Cs3As7. While compound 1 contains isolated As-7(3-) polyanions, As-M contacts (M-Na-Cs) lead to neutral [Rb(18-crown-6)](3)As-7 units in 2, a three-dimensional, extended network in 3, and one-dimensional, infinite, (1)(infinity)[CsAS(7)](2-) chains in 4, respectively.

引用

页码：950 / 961

页数：12

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