1,1’—二(二苯基膦)二茂铁作为双膦螯合配体性能的研究

Study on the Performance of 1, 1'-Bis (Diphenylphospnine) Ferrocene as a Diphosphine Ligand

本文研究了1,1’—二(二苯基膦)二茂铁(dppf)作为σ—供电子配体与过渡金属生成配合物的反应性能,研究结果表明,它如同双膦(diphos)螯合配体一样,不仅与中心金属之间有较强的螫合作用,可稳定低价态的过渡金属有机配合物,而且在多核金属有机配合物里又可作为桥连配体。然而,由于dppf配体里含有一个二茂铁的骨架,它与diphos配体的性能之间在某些方面又存在明显的差异。

The reactions of electron-doner 1,1'-Bis (diphenylphosphine) ferr- ocene (dppf) with transition metal salts or complexes are studied. Owing to the strong б-π interaction and chelation between dppf ligand and transition metal, the dppf ligand has the same function as diphosphine chelate ligand. Thus not only can it stabilize the low-valent organotransition metal complexes, but also it can be used as a bridging ligand in the polynuclear organo- metallic complexes. However, some functions of the dppf ligand are different from the diphosphine ligand becouse the former has a fragment of ferrocene.