一种具有顺式-N2H4配体的硫桥二铁（II）配合物。

IF 1.1 4区化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Zeitschrift fur Anorganische und Allgemeine Chemie Pub Date : 2013-07-01 DOI:10.1002/zaac.201300163

Bryan D Stubbert, Javier Vela, William W Brennessel, Patrick L Holland

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引用次数: 15

摘要

通过LFeII（μ-S）FeIIL（1；L=空间位阻的β二酮亚胺盐配体）与2摩尔当量的N2H4反应，制备了带有顺式-N2H4（肼）配体的硫桥二亚胺（II）配合物。如晶体学、核磁共振、振动和电子吸收光谱所示，形成了亚稳态二铁（II）肼配合物LFeII（μ-S）（μH-N-NH2）FeII（3）。化合物3已被晶体表征为其DBU（1,8-二氮杂双环[5.4.0]十一碳-7$ene）加合物，其表现出弱的N-H··DBU氢键。合成过程产生大约2当量的NH3。3中的顺式-N2H4桥可能与固氮酶FeMoco上中间体的结构和功能有关。

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A Sulfide-Bridged Diiron(II) Complex with a cis-N₂H₄Ligand.

A sulfide-bridged diiron(II) complex bearing a cis-N₂H₄ (hydrazine) ligand has been prepared by reaction of LFe^II(μ-S)Fe^IIL (1; L = sterically encumbered βdiketiminate ligand) with 2 molar equivalents of N₂H₄. The metastable diiron(II) hydrazine complex LFe^II(μ-S)(μH N-NH₂)Fe^II (3) is formed, as shown by crystallography, and NMR, vibrational, and electronic absorption spectroscopies. Compound 3 has been crystallographically characterized as its DBU (1,8-diazabicyclo[5.4.0]undec-7$ene) adduct, which exhibits weak N-H···DBU hydrogen bonding. The synthetic process evolves roughly 2 equivalents of NH₃. The cis-N₂H₄ bridge in 3 may be relevant to the structure and function of intermediates on the FeMoco of nitrogenase.

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来源期刊

Zeitschrift fur Anorganische und Allgemeine Chemie 化学-无机化学与核化学

CiteScore

2.60

自引率

14.30%

发文量

308

审稿时长

1 months

期刊介绍： ZAAC is an international scientific journal which publishes original papers on new relevant research results from all areas of inorganic chemistry, solid state chemistry, and co-ordination chemistry. The contributions reflect the latest findings in these research areas and serve the development of new materials, such as super-hard materials, electrical superconductors, or intermetallic compounds. Up-to-date physical methods for the characterization of new chemical compounds and materials are also described.