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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Synthesis and reactivity of mono(amidinate) organoiron(II) complexes
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Synthesis and reactivity of mono(amidinate) organoiron(II) complexes

机译:单(ami基)有机铁(II)配合物的合成与反应性

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The mono( amidinate) iron(II) ferrate complex [{PhC(NAr)(2)} FeCl(mu-Cl) Li(THF)(3)] ( 1, Ar = 2,6-iPr(2)C(6)H(3)) was prepared and was found to undergo ligand redistribution in non-coordinating solvents to give the homoleptic [{PhC(NAr)(2)}(2)Fe] ( 2) as the only isolable product. Reaction of 1 with alkylating agents also induces this redistribution, but the presence of pyridine allows isolation of the four-coordinate 14 VE monoalkyl complex [{PhC(NAr)(2)} FeCH2SiMe3(py)] ( 4). Generation of the 12 VE alkyl via pyridine abstraction from 4 by B(C6F5)(3) again induced ligand redistribution. Attempts to trap a 12 VE alkyl species with CO led to the isolation of a dimeric Fe( 0) - Li - ferrate complex ( 3) with a carbamoyl ligand, derived from CO insertion into the iron - amidinate bond.
机译:单(a基)铁(II)高铁酸盐络合物[{PhC(NAr)(2)} FeCl(mu-Cl)Li(THF)(3)](1,Ar = 2,6-iPr(2)C(制备了6)H(3)),发现它在非配位溶剂中进行配体重新分布,从而获得了均化剂[{PhC(NAr)(2)}(2)Fe](2)作为唯一可分离的产物。 1与烷基化剂的反应也诱导了这种重新分布,但是吡啶的存在允许分离四配位的14 VE单烷基络合物[{PhC(NAr)(2)} FeCH2SiMe3(py)](4)。通过B(C6F5)(3)从4处的吡啶抽象作用生成12个VE烷基,再次引起配体重新分布。试图用CO捕集12个VE烷基物质导致分离出具有氨基甲酸酯配体的二聚Fe(0)-Li-高铁酸盐络合物(3),其衍生自CO插入铁-in酰胺键中。

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