350995-85-6Relevant academic research and scientific papers
Preparation and characterization of ruthenium(II) monophosphaferrocene complexes. Reactivity, dynamic solution behavior, and X-ray structure of [RuH2(η2-H2)(PCy3) 2(2-phenyl-3,4-dimethylphosphaferrocene)]
Toner,Donnadieu,Sabo-Etienne,Chaudret,Sava,Mathey,Le Floch
, p. 3034 - 3038 (2001)
The bis(dihydrogen) complex RuH2(H2)2(PCy3)2 (1) reacts with 2-phenyl-3,4-dimethylphosphaferrocene (L1) to give RuH2(H2)(PCY3)2(L1) (2). This dihydride-dihydrogen complex has been characterized by X-ray crystallography and variable-temperature 1H and 31p NMR spectroscopy. The exchange between the dihydrogen ligand and the two hydrides is characterized by a ΔG of 46.2 kJ/mol at 263 K. H/D exchange is readily observed when heating a C7D8 solution of 2 (JH-D = 30 Hz). The H2 ligand in 2 can be displaced by ethylene or carbon monoxide leading to the corresponding ethylene or carbonyl complexes. The reaction of 1 with 2 equiv of 3,4-dimethylphosphaferrocene (L2) yields the dihydride complex RuH2(PCy3)2(L2)2 (5).
