Ein neuer Heterocyclus, 2λ³,4λ⁵-[1,2,4]-Oxadiphosphinin (2), als Ligand eines zweikernigen Eisenkomplexes / A New Heterocycle, 2λ³, 4λ⁵ -[1,2,4]-Oxadiphosphinine (2), as Ligand of a Binuclear Iron Complex

Abstract

Preparation and properties of a coordination compound are described, in which a carbonyl group in bis[(dicarbonyl)(μ5-cyclopentadienyl)iron] is substituted by hitherto unknown octa- N-methyl-2λ3,4λ5-[1,2,4]-oxadiphosphinine-2,4,4,6-tetramine (2). The 1H , 31P, and 13C NMR spectra are recorded and discussed in detail. The molecular structure of the iron complex 4 is described and interpreted.