Crystal and molecular structure of acetatotetrakis(dimethylphenyl-phosphine) ruthenium(II) hexafluorophosphate

Abstract

The crystal structure of the title complex has been determined by X-ray diffraction methods from counter data. Crystals are orthorhombic, space group P2₁2₁2₁, with Z= 4, a=18.29, b= 16.45, c= 13.05 (all ±0.02)Å. The structure was solved by heavy-atom methods and refined by least-squares to R 0.049 far 1 773 observed reflections. The cation is monomeric with a distorted octahedral co-ordination. The mean Ru–P bond length for the two trans-PMe₂Ph groups (2.43 Å) is significantly longer than that of the cis-PMe₂Ph ligands (2.31 8). and mean Ru–O is 2.23 Å. The acetate group is bidentate and subtends an angle of 58.7° at ruthenium.