[1,1′-Bis(diphenyl­phosphan­yl)ferrocene-κ²P,P′](η⁵-cyclo­penta­dien­yl)(dicyanamido-κN)ruthenium(II) dichloro­methane monosolvate

The title compound, [FeRu(C₅H₅)(C₂N₃)(C₁₇H₁₄P)₂], was obtained by reaction of Cp(dppf)RuCl [dppf = 1,1′-bis­(diphenyl­phosphan­yl)ferrocene] with sodium dicyanamide in dichloro­methane. The Ru^II atom is capped by an η⁵-cyclo­penta­dienyl (Cp) ring, a chelating dppf and a terminal C₂N₃ unit, giving three-legged piano-stool geometry. The C—N—C angle of the N(CN)₂ ligand [120.8 (6)°] is significantly smaller than that in the corresponding diruthenium complex [127.2 (9)°; Zhang et al. (2003). Inorg. Chem. 42, 633–640] due to steric hindrance between the two {Cp(PPh₃)₂Ru} building blocks. Disorder was found in the dichloro­methane solvent mol­ecule, which was refined as disordered over two positions, with a site-occupancy ratio of 0.53:0.47 (2).

N′-(2-Chloro­benzyl­idene)-4-methyl­benzohydrazide

In the title compound, C₁₅H₁₃ClN₂O, the mol­ecule displays a trans conformation with respect to the C=N bond. The two aromatic rings form a dihedral angle of 12.0 (3)°. In the crystal, mol­ecules are connected via N—H...O hydrogen bonds into chains propagating along the c-axis direction.