Abstract

The multicomponent chemical reactions of Fe(SO₄)∙7H₂O, Li(Рiv), K(Рiv) (Рiv is pivalate anion), and heterocyclic N-donor ligands (pyridine (Рy), 1,10-phenanthroline (Рhen)) in anhydrous acetonitrile under an inert atmosphere afford new heterometallic tetranuclear complexes [\({\text{Fe}}_{2}^{{{\text{II}}}}\)Li₂(Рiv)₆(Рy)₄] (I) and [\({\text{Fe}}_{2}^{{{\text{II}}}}\)Li₂(Рiv)₆(Рhen)₂] (II) in which all carboxylate anions act as bridging ligands. The molecular and crystal structures of the compounds are determined by X-ray diffraction (XRD) (CIF files CCDC nos. 2220576 (I) and 2220577 (II·2CH₃CN). In the studied complexes, the iron(II) atoms exist in the distorted octahedral ligand environment.

中文翻译：

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N-供体配体稳定的四核异金属铁(II)-羧酸锂：合成和结构

摘要

_{Fe(SO 4} )∙7H ₂ O、Li(Рiv)、K(Рiv)（Рiv 为新戊酸根阴离子）和杂环 N-供体配体（吡啶 (Рy)、1,10-菲咯啉 (Рhen) 的多组分化学反应)) 在惰性气氛下的无水乙腈中提供新的异金属四核配合物 [ \({\text{Fe}}_{2}^{{{\text{II}}}}\) Li ₂ (Рiv) ₆ (Рy ) ₄ ] ( I ) 和 [ \({\text{Fe}}_{2}^{{{\text{II}}}}\) Li ₂ (Рiv) ₆ (Рhen) ₂ ] ( II）其中所有羧酸根阴离子充当桥连配体。化合物的分子和晶体结构通过 X 射线衍射 (XRD) 确定（CIF 文件 CCDC 编号 2220576 ( I ) 和 2220577 ( II ·2CH ₃ CN)。在所研究的配合物中，存在铁 (II) 原子在扭曲的八面体配体环境中。