Complexes binucleaires de fer carbonyle liaison σ-metal-carbone: Synthese, etude structurale et proprietes
作者:Henri Patin、Boguslaw Misterkiewicz、Jean-Yves Le Marouille、Abdelhamid Mousser
DOI:10.1016/0022-328x(86)80362-x
日期:1986.10
Dithioesters R1C(S)SR2 react with [Fe2(CO)9] to afford binuclear complexes (Co)3FeC(R1)S(R2)SFe(CO)3 (I) in which the organic ligand gives six electrons to the Fe2(CO)6 skeleton. Spectroscopic data show the existence of carboniron σ bond with creation of a chiral center. This is confirmed by single-crystal X-ray structure determination of complex Ig(R1 = C4H3S, R2 = Me). This structure shows that
二硫酯R 1 C(S)SR 2与[Fe 2(CO)9 ]反应,得到双核络合物(Co)3 FeC(R 1)S(R 2)SFe(CO)3(I),其中有机配体给Fe 2(CO)6骨架提供六个电子。光谱数据表明,随着手性中心的产生,碳铁σ键的存在。这通过复合物Ig的单晶X射线结构测定得到证实(R 1 = C 4 H 3 S,R 2 = Me)。这种结构表明,协调施加了重要的几何约束。13C NMR研究揭示了溶液中配合物I的温度依赖性动力学行为。羰基通量独立地发生在每个金属原子周围。尽管在碱性介质中或在氧化剂的存在下易碎,但配位有机配体仍可能发生亲电取代。