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- W2000972341 abstract "Reactions of ethyne with [Ru3(μ-dppm)(CO)10] have given isomeric complexes [Ru3(μ3-C6H6)(CO)6(dppm)], one of which, 2, contains the dppm chelating an Ru-atom, together with a hexatrienetriyl ligand attached to the Ru3 cluster to form a methylideneruthenacyclohexadiene system. The second isomer 3 contains the dppm bridging an Ru−Ru bond, with the C6H6 ligand forming a vinylruthenacyclopentadiene system. Also isolated was the open-chain Ru3 complex 4 containing a ruthenacyclopentadiene attached to the central Ru-atom; the other Ru−Ru vector is bridged by a PPh2CHPPh2C4H5 ligand, formed by a novel insertion of two ethyne molecules into an Ru−P bond. The reaction of ethyne with [Ru3(μ-H)(μ3-C2H2)(CO)9] proceeded by attack at the coordinated alkyne and at the cluster to give a cluster-bonded PPh2CH2PPh2CCH system in 7. Thermolysis of [Ru3(μ-H)(μ3-C2SiMe3)(μ-dppm)(CO)7] (8; refluxing MeOH) in the presence of KF gave [Ru6(μ-CCH2)2(μ-dppm)2(CO)12] (9; 80%); similar reactions carried out with [RuClCp(PPh3)2] also present gave 9 (67%) together with [Ru3(μ-H)(μ3-C2H)(μ-dppm)(CO)6(PPh3)] (11; 23%). The molecular structures of 2, 3, 4, 7, 9, and 11, some as differently solvated forms, have been determined by single-crystal X-ray studies." @default.
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- W2000972341 date "2001-10-17" @default.
- W2000972341 modified "2023-09-23" @default.
- W2000972341 title "Reactions of Ethyne with Some Ruthenium Cluster Complexes Containing dppm" @default.
- W2000972341 doi "https://doi.org/10.1002/1522-2675(20011017)84:10<3197::aid-hlca3197>3.0.co;2-s" @default.
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