The chemistry of dodecacarbonyltriruthenium I. Acetylene derivatives of dodecacarbonyltriruthenium

Alkyne Coupling Induced by a Trinuclear Ruthenium Cluster: Synthesis and Structure of Di-μ-carbonyl-hexacarbonyl-μ3-(1,2,3,4-tetraphenyl-1,3-butadiene-1,4-diyl)-triruthenium(2 Ru—Ru), [Ru3(CO)8(C4Ph4)]

“…Dodecacarbonyltriruthenium has been shown to react with alkynes to give good yields of complexes containing a metallacyclopentadiene ring, RuC4, with cr metal-carbon bonds (Sears & Stone, 1968;Cetini, Gambino, Sappa & Valle, 1969;Sappa, Manotti Lanfredi & Tiripicchio, 1980;Rosenberg et al, 1981), where two or three alkynes join to form the heterocyclic fivemembered ring. Dodge & Schomaker (1965) reported the X-ray crystal structures of two isomers of the general formula [Fe3(CO)8(C2Ph2)2] obtained by the reaction of [Fe3(CO)12] with diphenylacetylene, PhC::z--CPh.…”

Catalytically Reactive Ruthenium Intermediates in the Homogeneous Oxidation of Alcohols to Esters

“…When the catalysis is carried out under CO, both reactions (8) and (9) should converge into a single new equilibrium system involving all the components of Eqs. (8) and (9). Indeed, the data in Table 3 indicate similar initial rates and also turnover numbers for 9 and 10 when the catalysis is carried out under CO.…”

“…The concentration of each reaction component was determined from the corresponding calibration graphs and plotted vs. time. The initial rates were evaluated from the constant slope portion of the graph, usually 0-2 h. (9) This compound was prepared and characterized according to the literature.W."." It was also obtained from [Ru(Ph,C,CO) (COX], (10) (30 mg) in toluene (2 ml), by heating in an autoclave at 145" under CO (1 atm) for 1 h. The IR spectrum of the solution indicated 100% conversion of 10 to 9.…”

Unusual rearrangement of the Ru3(μ-CO)2(CO)6{μ3-η1:η1:η4:η4-C4Ph2(CH=CHPh)2} complex containing an open triruthenium framework to the Ru3-triangular cluster Ru3(CO)8{μ3-η1:η1:η4:η2-C4Ph2(CH=CHPh)2}. Reactions of Ru3(CO)8{μ3-η1:η1:η4:η2-C4Ph2(CH=CHPh)2} with PPh3, P(OPri)3, CO, and the crystal structure of Ru3(CO)8(PPh3{μ-η1:η1:η4-C4Ph2(CH=CHPh)2}

“…4,6,7 The derivatives of the first type contain two 2a,=-coordinated alkyne ligands situated on the opposite sides of the plane of the triangle formed by metal atoms. 4,6,7 The derivatives of the first type contain two 2a,=-coordinated alkyne ligands situated on the opposite sides of the plane of the triangle formed by metal atoms.…”