851392-63-7Relevant academic research and scientific papers
Reactivity of the unsaturated complex [(C6Me6) 2Ru2(μ2-H)3]+ toward phosphines: Synthesis and molecular structure of the dinuclear cations [(C 6Me6)2Ru2(μ2-PR
Tschan, Mathieu J.-L.,Cherioux, Frederic,Karmazin-Brelot, Lydia,Suess-Fink, Georg
, p. 1974 - 1981 (2008/10/09)
The unsaturated trihydrido complex [(C6Me6) 2Ru2(μ2-H)3]+ reacts with diaryl- or dialkylphosphines PR2H to give the dinuclear cations [(C6Me6)2Ru2(μ2- PR2)(μ2-H)2]+ (R= Ph, 1; R = t-Bu, 2). Surprisingly, complexes of the type [(C6Me 6)2Ru2(μ2-PR2) (μ2-H)2]+ with R = Ph (1), n-Bu (3), n-Oct (4) are also accessible in high yield from the reaction of [(C 6Me6)2Ru2-(μ2-H) 3]+ with the corresponding triaryl- or trialkylphosphine PPh3, P(n-Bu)3, or P(n-Oct)3 by carbon-phosphorus bond cleavage. A possible intermediate of the reaction with PPh3, [(C6Me6)2Ru 2(μ2-PPh2)(μ2-H) (μ2-Ph)]+ (5), could be isolated from the reaction mixture as the tetrafluoroborate salt, the single-crystal X-ray structure analysis of which reveals a bridging phenyl ligand coordinated in an η1-μ2 fashion to the diruthenium backbone. With the mixed phosphine PMe2Ph, [(C6Me6) 2Ru2(μ2-H)3]+ reacts to give [(C6Me6) 2Ru2(μ2-PMe2)(μ2-H) 2]+ (6) and the corresponding intermediate [(C 6Me6)2Ru2(μ2-PMe 2)(μ2-H)(μ2-Ph)]+ (7). All dinuclear cations are isolated as the tetrafluoroborate salts.
