MOLECULAR AND CRYSTAL-STRUCTURE OF THE DIMERIC MAGNESIUM BIS[BIS(TRIMETHYLSILYL)-AMIDE]

被引：71

作者：

WESTERHAUSEN, M

SCHWARZ, W

机构：

[1] Institut Für Anorganische Chemie, Universität Stuttgart

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1992年 / 609卷 / 03期

关键词：

MAGNESIUM BIS[BIS(TRIMETHYLSILYL)AMIDE; STRUCTURE;

D O I：

10.1002/zaac.19926090307

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The magnesium bis[bis(trimethylsilyl)amide] crystallizes as a dimeric molecule in the space group C2/c with {a = 1 821.0(4); b = 1 494.4(4); c = 1 859.6(6) pm; beta = 121.10(2)-degrees; Z = 4 dimers}. The cyclic planar Mg2N2 moiety shows endocyclic NMgN angles of 95.8-degrees. The bond lengths within this ring system to the four-coordinate, bridging nitrogen atoms N(b) are 215 pm, whereas the distances between the magnesium atom and the terminal, three-coordinate nitrogen atom N(t) display values of approximately 198 pm. These different coordination numbers of the nitrogen atoms affect the NSi bond length (N(t)Si 171, N(b)Si 177 pm).

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页码：39 / 44

页数：6

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