Komplexchemie polyfunktioneller Liganden, 411 Synthese und Kristallstruktur von Di-μ-carbonyl-μ-bis(diphenylphosphino)-amin-tetracarbonyl-dikobalt(0) (Co-Co) · 0,5 Benzol / Complex Chemistry of Polyfunctional Ligands, 411 Synthesis and Crystal Structure of Di-µ-carbonyl-µ-bis(diphenylphosphino)amine-tetracarbonyl-dicobalt(0) (Co—Co) · 0.5 Benzene

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Abstract
X-ray investigations of brown crystals, formed as a by-product in the reaction of Co2(CO)8 with (C6H5)2P(CH2)2P(C6H5)2 show the existence of the complex Co2(µ-CO)2(CO)4μ-[(C6H5)2P]2NH. The triclinic unit cell (space group PĪ ) contains two complex molecules and one molecule benzene as a solvate. The ligand (C6H5)2P(CH2)2P(C6H5)2, prepared by literature methods, obviously sometimes contains some [(C6H5)2P]2NH. The compound Co2(μ-CO)2(CO)4μ-[(C6H5)2P]2NH can also be directly synthesized by the reaction of Co2(CO)8 with [(C6H5)2P]2NH.