94658-86-3

Upstream product

• 603-35-0 triphenylphosphine 
• 119743-32-7 {(C₄Ph₄CO)(CO)2Ru}2 
• 35828-06-9 [Ru(η-diphenylacetylene)(CO)2(triphenylphosphine)2] 
• 35880-54-7 {ruthenium⁽⁰⁾ dicarbonyltris(triphenylphosphine)} 
• 75-09-2 dichloromethane 
• 501-65-5 diphenyl acetylene 

Relevant academic research and scientific papers

Reactions of ruthenium(o) phosphine complexes with diphenylacetylene

Heating diphenylacetylene with [Ru(CO)2(PPh3) 3] in toluene under reflux provides the 2-phenylindenone complex [Ru(η3=CCPh=CHC6H4)(CO)(PPh 3)2], arising from C-H activ

X-ray structure, reactivity, and catalytic properties of a (cyclopentadienone)ruthenium dimer, [(C4Ph4CO)(CO)2Ru]2

The title complex 4a as well as several other isostructural complexes have been prepared. Single-crystal X-ray diffraction analysis of 4a indicates a centrosymmetric dimeric structure (Figure 1); the complex crystallizes in space group P1 (No. 2): a = 10.938 (1) ?, b = 11.990 (1) ?, c = 12.528 (1) ?, α = 68.62 (1)°, β = 77.99 (1)°, γ = 64.18 (1)°, V = 1374.8 (2) ?3, Z = 2 (monomer units), 4835 unique reflections, R = 0.056, 4324 reflections, F > 4σ(F). The cyclopentadienone carbonyl is bent back from the diene plane at an angle of 6.7°, with a >C=O bond length of 1.270 (7) ?. A crossover experiment with two structurally different dimer complexes indicates that the thermal dissociation of these dimers is a relatively low-energy process. Nucleophilic ligands, L (L = CO, phosphines, amines), react readily with 4a to give mononuclear complexes of the type (η4-C4Ph4CO)Ru(CO)2L. Treatment of 4a with either dihydrogen or ethanol leads to oxidative addition of dihydrogen to Ru with the formation of (η5-C4Ph4COH)(CO)2RuH. The catalytic activity of 4a and other related complexes is discussed in the light of the above results.