Synthese und Kristallstrukturen der Nitridodiolato-Osmate(VI) PPh4[OsNCl2(O2C2H4)] und PPh4[OsNCl2(O2C2Me4)] · 2 THF |
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Authors: | Silke Buth Klaus Harms Peter Knig Sigrid Wo
adlo Frank Weller Kurt Dehnicke |
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Institution: | Silke Buth,Klaus Harms,Peter König,Sigrid Wo?adlo,Frank Weller,Kurt Dehnicke |
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Abstract: | Syntheses and Crystal Structures of the Nitridodiolato Osmates(VI) PPh4OsNCl2(O2C2H4)] and PPh4OsNCl2(O2C2Me4)] · 2 THF The title compounds were prepared by the reaction of PPh4OsNCl4] with glycole and pinacole, respectively, in CH2Cl2 and THF, respectively, in the presence of triethylamine, forming orange-red single crystals. According to the crystal structure determinations the compounds have ionic structures. In the anions the nitrido ligand occupies the apical position of the distorted tetragonal pyramid, and the two chlorine atoms and the two oxygen atoms of the diolato ligands are in equatorial positions. PPh4OsNCl2(O2C2H4)] : Space group P21/n, Z = 4, 3 331 observed unique reflections, R = 0.031. Lattice dimensions at 19°C: a = 1 750.3, b = 816.8, c = 1 816.5 pm, β = 95.16°. PPh4OsNCl2(O2C2Me4)] · 2 THF : Space group P1 , Z = 2, 5 238 observed unique reflections, R = 0.051. Lattice dimensions at -80°C: a = 898.9, b = 1 405.1, c = 1 518.6 pm, α = 93.66°, β = 92.89°, γ = 92.51°. |
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Keywords: | Nitrido Diolato Osmates(VI) Synthesis Crystal Structure |
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