154035-00-4Relevant academic research and scientific papers
Cluster Chemistry. Part 92. Directed Syntheses and Crystal Structures of C2>>*CH2Cl2, (μ-PPh2C2C2)> and (μ-PPh2)(μ-CO)2(CO)14>*CH2Cl2
Adams, Chris J.,Bruce, Michael I.,Horn, Ernst,Skelton, Brian W.,Tiekink, Edward R. T.,White, Allan H.
, p. 3313 - 3322 (1993)
Reactions of with n(CO)11>2(μ-bdpp)> n = Ru3, Os3, Re3(μ-H)3, or Ru4(μ-H)4; bdpp = PPh2C2C2PPh2> afforded n(CO)11>2C2PPh2>> n = Ru3 1, Os3 2, Re3(μ-H)3 or Ru4(μ-H)4 4> in which the Co2(CO)6 moiety bonds to one of the CC triple bonds of the bridging bdpp ligand.Pyrolysis of 1 yielded C2>> 5, which is formed by concomitant addition of a P-C(sp) bond to one Ru3 cluster and elimination of a Ru(CO)4 fragment.In > 8, obtained by heating 2, the Co2Os3 cluster consists of three edge-sharing triangles; the C2 fragment interacts with all five metal atoms.Reaction of the mixed-metal complex (μ-bdpp) 10 with yielded a 1:1 isomeric mixture of C2PPh2>> 11a and C2PPh2>> 11b.Pyrolysis of 11a afforded (μ-PPh2)(μ-CO)2(CO)14> 12 in which all three transition metals form a cluster about the C4P fragment of the original bdpp ligand, which has also added one H atom to the carbon adjacent to the PPh2 group.The second PPh2 group bridges an Os-Os bond.Molecular structures of 5, 8 and 12 were determined by X-ray crystallography.
