Über die Reaktionen von ein- und zweikernigen, kationischen η5-Cyelopentadienyl-carbonyl-Komplexeii des Eisens, Rutheniums und Osmiums mit flüssigem Ammoniak [1] / On the Reactions of Mono- and Dinuclear, Cationic η5-Cyclopentadienyl Carbonyl Complexes of Iron, Ruthenium and Osmium with Liquid Ammonia [1]

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Abstract
The covalent carbamoyl compounds η5-C5H5Ru(CO)(L)(CONH2) (L = CO, MeCN, MeNC, PPh3, PEt3) and η5-C5H5Os(CO)2(CONH2) are formed by the reactions of the cationic complexes [η5-C5H5Ru(CO)2(L)]+ (L = CO, MeCN, MeNC, PPh3, PEt3) and [η5-C5H5Os(CO)3]+ with liquid NH3 below 10 °C. In contrast, the reaction of [η5-C5H5Ru(CO)2(η2-C2H4)]PF6 with liquid NH3 yields the quarternary ammonium salt [η5-C5H5Ru(CO)2(CH2CH2 ⊕NH3)]PF6. With the cationic complexes {[η5-C5H5M(CO)2]2(P̑P)}++ (M = Fe, Ru; P̑P = Ph2PCH2CH2PPh2) it was possible to prepare the dinuclear P̑P bridged carbamoyl derivatives [η5-C5H5M(CO)(CONH2)]2(P̑P).