Abstract
The reaction between the pentamethylcyclopentadienyl complex Cp*Ru(NO)Cl2 and oxalic acid in methanolic KOH affords the corresponding oxalate compound Cp*Ru(NO)(ox) in moderate yield. The title complex has been isolated and characterized in solution by IR and NMR (1H and13C) spectroscopy, and the solid-state structure has been established by X-ray diffraction analysis, which confirmed the presence of the chelating oxalate ligand in Cp*Ru(NO)(ox). Cp*Ru(NO)(ox) crystallizes in the triclinic space group\(P\bar 1\),a=7.0875(9) A,b=8.589(2) A,c=12.784(4) A, α=73.58(2)°, β=88.93(2)°, γ=66.86(2)°,V=682.7(8) A3,Z=2,dcalc=1.724 g·cm−3; R=0.053, Rw=0.071 for 1561 observed reflections withI>3σ(I).
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