D. Fenske, U. Demant, K. Dehnicke
Dec 1, 1985
Citations
0
Influential Citations
2
Citations
Journal
Zeitschrift für Naturforschung B
Abstract
Abstract Ruthenium trichloride, obtained from its hydrate with thionyl chloride, reacts with excess trichloronitrom ethane yielding polymer [Ru(NO)Cl3]; by addition of triphenylmethylphosphonium chloride in dichlorom ethane (PPh3Me)2[Ru(NO)Cl4]2 · 2 CH2Cl2 is obtained, the IR spectrum of which is reported and assigned. Its crystal structure was determined with X-ray diffraction data (6404 independent observed reflexions, R = 0.068). Crystal data at -90 °C: a = 1145, b = 1591, c = 1406 pm, β = 96,0°, Z = 2, space group P21/C. The structure consists of PPh3Me⊕ cations, centrosymmetric anions [Ru(NO)Cl4]22⊖ nearly fulfilling C2h symmetry, and CH2Cl2 molecules. In the anions the Ru atoms are linked via chloro bridges; the nitrosyl groups occupy axial positions with bond distances RuN of 175 and NO of 113 pm, bond angle RuNO 172.7°.