852433-52-4Relevant academic research and scientific papers
Further chemistry of ruthenium butatrienylidene complexes
Bruce, Michael I.,Ellis, Benjamin G.,Skelton, Brian W.,White, Allan H.
, p. 1772 - 1783 (2005)
Several complexes have been obtained from reactions carried out in early attempts to prepare the diynyl complexes Ru(C≡CC≡CR)(dppe)Cp* (R = H, SiMe3). These have been identified crystallographically as the acyl complex Ru{C≡CC(O)Me}(dppe)Cp* (3), the cationic imido complex [Ru{C≡CC(=NH2)Me}(dppe)Cp*]PF6 (4), the binuclear butenynylallenylidene [{Ru(dppe)Cp*}2{μ- C≡CC(OMe)=CHCMe=C=C=}]PF6 (5), and the bis(ethynyl) cyclobutenylidene [{Ru(dppe)Cp*}2{μ-C≡CC 4H2(SiMe3)C≡C}]PF6 (6). NMR studies of 5 have revealed the existence of two isomers. Plausible routes for their formation from the putative butatrienylidene intermediate [Ru(=C=C=C=CH2)(dppe)Cp*]+ (A) are discussed.
