[RuCp(PR<sub>3</sub>)(CH<sub>3</sub>CN)<sub>2</sub>]PF<sub>6</sub> (R = Ph, Me, Cy). Convenient Precursors for Mixed Ruthenium(II) and Ruthenium(IV) Half-Sandwich Complexes
作者:Eva Rüba、Walter Simanko、Klaus Mauthner、Kamran M. Soldouzi、Christian Slugovc、Kurt Mereiter、Roland Schmid、Karl Kirchner
DOI:10.1021/om990245o
日期:1999.9.1
The reaction of [RuCp(CH3CN)3]PF6 (1) with the monodentateligands PR3 (R = Me, Ph, Cy) affords the cationic complexes [RuCp(PR3)(CH3CN)2]PF6 (2a−c) in high yields. The CH3CN exchange kinetics has been studied by NMR, suggesting a dissociative mechanism. Due to van der Waals repulsive interactions between PCy3 and the nitrile ligands, CH3CN is particularly labile in 2c. The chemistry of 2a−c has been