Homoleptic alkaline earth metal bis(trifluoromethanesulfonyl)imide complex compounds obtained from an ionic liquid

被引：59

作者：

Babai, A ^{[1
]}

Mudring, AV ^{[1
]}

机构：

[1] Univ Cologne, Inst Anorgan Chem, D-50939 Cologne, Germany

来源：

INORGANIC CHEMISTRY | 2006年 / 45卷 / 08期

关键词：

D O I：

10.1021/ic051820l

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The first homoleptic alkaline earth bis(trifluoromethanesulfonyl)imide (Tf2N) complexes [mppyr](2)[Ca(Tt(2)N)(4)], [mppyr](2)-[Sr(Tf2N)(4)], and [mppyr][Ba(Tf2N)(3)] were crystallized from a solution of the respective alkaline earth bis(trifluoromethanesulfonyl)imide and the ionic liquid [mppyr][Tf2N] (mppyr = 1,1-N-methyl-N-propylpyrrolidinium). In the calcium and strontium compounds, the alkaline earth metal (AE) is coordinated by four bidentately chelating Tf2N ligands to form isolated (distorted) square antiprismatic [AE(Tf2N)(4)](2-) complexes which are separated by N-methyl-N-propylpyrrolidinium cations. In contrast, the barium compound, [mppyr][Ba(Tf2N)(3)], forms an extended structure. Here the alkaline earth cation is surrounded by six oxygen atoms belonging to three Tf2N- anions which coordinate in a bidentate chelating fashion, Three further oxygen atoms of the same ligands are linking the Ba2+ cations to infinite (1)(infinity)[Ba(Tf2N)(3)] chains.

引用

页码：3249 / 3255

页数：7

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