Divalent Transition Metal Silylamide Ate Complexes
Divalent Transition Metal Silylamide Ate Complexes
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DOI：
10.1002/ejic.201402557
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发表时间：
2014-09-01
影响因子：
2.3
通讯作者：
Anwander, Reiner
中科院分区：
文献类型：
--
作者：
Koenig, Sonja N.;Schneider, David;Anwander, Reiner
通过添加相应的硅烷基氨基锂或钠盐，由二价过渡金属硅烷基氨基络合物{Fe[N（SiMe 3）（2）]（2）}（2）、Cr[N（SiMe 3）（2）]（2）（thf）、Co[N（SiMe 3）（2）]（2）（thf）（2）和{Mn[N-（SiHMe 2）（2）]（2）}（2）（thf =四氢呋喃）合成了双金属酸盐络合物。相应地，获得了无施主的LiFe[N（SiMe 3）（2）]（3）和NaMn[N（SiHMe 2）（2）]（3）以及（thf）配位的（thf）NaCr[N（SiMe 3）（2）]（3）和（thf）纳科[N-（SiMe 3）（2）]（3）。通过将四氢呋喃（thf）简单加成到无给电子体的配合物LiFe [N（SiMe 3）（2）]（3）中，合成了含thf的混合铁（II）/双（三甲基硅基）氨基锂配合物（thf）LiFe [N-（SiMe 3）（2）]（3）。通过元素分析和红外光谱对配合物进行了表征，并采用Evans法测定了配合物的有效磁矩。这些双（三甲基甲硅烷基）酰胺衍生的复合物的固态结构，另外确定通过X-射线晶体学。
Dimetallic ate complexes were synthesized from the divalent transition metal silylamide complexes {Fe[N(SiMe3)(2)](2)}(2), Cr[N(SiMe3)(2)](2)(thf), Co[N(SiMe3)(2)](2)(thf)(2), and {Mn[N-(SiHMe2)(2)](2)}(2) (thf = tetrahydrofuran) by the addition of the corresponding lithium or sodium silylamide salt. Accordingly, donor-free LiFe[N(SiMe3)(2)](3) and NaMn[N(SiHMe2)(2)](3) as well as thf-coordinated (thf) NaCr[N(SiMe3)(2)](3) and (thf) NaCo[N-(SiMe3)(2)](3) were obtained. The thf-containing mixed iron(II)/lithium bis(trimethylsilyl) amide complex (thf) LiFe[N-(SiMe3)(2)](3) was synthesized by the simple addition of thf to the donor-free complex LiFe[N(SiMe3)(2)](3). All of the complexes were characterized by IR spectroscopy and elemental analysis, and the effective magnetic moments in solution were determined by the Evans method. The solid-state structures of these bis(trimethylsilyl) amido-derived complexes were additionally determined by X-ray crystallography.