168022-94-4Relevant academic research and scientific papers
Synthesis of Tetracobalt Clusters from Dicobalt Alkyne Complexes
Jeffery, John C.,Pereira, Regina M. S.,Vargas, Maria D.,Went, Michael J.
, p. 1805 - 1812 (1995)
The room-temperature reactions of or with Ph2PCCPh (L) afford 1-L)> or 1-L)> and 1-L)2>, respectively, in which L is bound via the phosphine functionality.The structure of 1-L)2> has been established by X-ray crystallography and comprises two Co(CO)2(η1-L) units bridged by a MeCCMe ligand.Reactions of 1CCR2)(CO)5(η1-L)> with afford 1CCR2)(CO)5(μ-η1:η2-L)Co2(CO)6> (R1 = Ph, R2 = H; R1 = R2 = Me), in which L is bound to the Co2(CO)6 unit via the alkyne functionality.Pyrolysis of 1:η2-L)Co2(CO)6> results in phosphorus-carbon bond cleavage and cobalt-cobalt and carbon-carbon bond formation to afford a butterfly cluster 4-η3-PhCCC(Me)=C(Me)C(O)>(μ-PPh2)(μ-CO)2(CO)6>, whose structure has been established by X-ray diffraction.
