Hydrazine Capture and N-N Bond Cleavage at Iron Enabled by Flexible Appended Lewis Acids.

Hydrazine Capture and N-N Bond Cleavage at Iron Enabled by Flexible Appended Lewis Acids.
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DOI:
10.1021/jacs.7b11465
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发表时间:
2017-12-20
影响因子:
15
通讯作者:
Szymczak NK
Szymczak NK
中科院分区:
化学1区
文献类型:
--
作者:
Kiernicki JJ;Zeller M;Szymczak NK

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将两个9-硼双环[3.3.1]-壬基取代基并入基于钳的Fe(II)络合物的次级配位球内提供了能够结合1或2当量的N2 H4的刘易斯酸性位点。1:1 Fe:N2 H4物质的还原提供了稀有的Fe(NH 2)2络合物,其中酰胺基配体通过与附加的硼烷的相互作用而稳定。NH 2单元可以在质子化后作为NH3释放并与外源N2 H4交换。
Incorporation of two 9-borabicyclo[3.3.1]-nonyl substituents within the secondary coordination sphere of a pincer-based Fe(II) complex provides Lewis acidic sites capable of binding 1 or 2 equiv of N2H4. Reduction of the 1:1 Fe:N2H4 species affords a rare Fe(NH2)2 complex in which the amido ligands are stabilized through interactions with the appended boranes. The NH2 units can be released as NH3 upon protonation and exchanged with exogenous N2H4.
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