A Dinuclear Ruthenium(II) Chelating Amido Complex: Synthesis, Characterization, and Coupling Reaction with Carbon Monoxide

[Cp*RuCl]4 (Cp* = η5-C5Me5) reacts with 2 equiv of dilithium 2,3-naphthalenediamide to afford the dinuclear bridging amido complex [(Cp*Ru)2{μ2-(NH)2C10H6}] (1b) in moderate yield. Treatment of 1b with CO (1 atm) resulted in the incorporation of three molecules of CO into the diruthenium core to give the carbamoyl amido bis(carbonyl) complex [Cp*Ru(μ2-CO){μ2-2,3-(CONH)(NH)C10H6}RuCp*(CO)] (4).