Synthetic, Structural, and Spectroscopic Characterization of a Novel Family of High-Spin Iron(II) [(β-Diketiminate)(phosphanylphosphido)] Complexes
作者:Rafał Grubba、Kinga Kaniewska、Łukasz Ponikiewski、Beata Cristóvão、Wiesława Ferenc、Alina Dragulescu-Andrasi、J. Krzystek、Sebastian A. Stoian、Jerzy Pikies
DOI:10.1021/acs.inorgchem.7b01374
日期:2017.9.18
describes a series of iron(II) phosphanylphosphido complexes. These compounds were obtained by reacting lithiated diphosphanes R2PP(SiMe3)Li (R = t-Bu, i-Pr) with an iron(II) β-diketiminate complex, [LFe(μ2-Cl)2Li(DME)2] (1), where DME = 1,2-dimethoxyethane and L = Dippnacnac (β-diketiminate). While the reaction of 1 with t-Bu2PP(SiMe3)Li yields [LFe(η1-Me3SiPP-t-Bu2)] (2), that of 1 with equimolar amounts
这项工作描述了一系列的铁(II)膦酰基磷酸酯络合物。通过锂化反应diphosphanes得到这些化合物- [R 2 PP(森达3)栗(R =吨-Bu,我-Pr)与铁(II)β-二亚胺基配合物[LFE(μ 2 -Cl)2李(DME )2 ](1),其中DME = 1,2-二甲氧基乙烷,L =双萘那克(β-二酮)。而反应1与吨-Bu 2 PP(森达3)栗收率[LFE(η 1 -Me 3 SiPP-吨-Bu 2)](2),即的1与等摩尔量的我-Pr 2 PP(森达3)栗,在DME,导致[LFE(η 2 -我-Pr 2 PPSiMe 3)](3)。相反,1与(i -Pr 2 N)2 PP(SiMe 3)Li的反应不是提供含铁配合物,而是提供1-[((二异丙基氨基)膦] -2,4-双(二异丙基氨基)-3- (三甲基甲硅烷基)四磷杂环丁烷(4)。使用衍射法确定2 – 4的结构。因此,2展示了一个三坐标