Carboncarbon coupling reactions on triruthenium clusters: synthesis and structure of Ru3(CO)9[μ3-η3-PhCCCC(H)Ph][μ2-NS(O)MePh] and Ru3(μ2-CO)(CO)7[μ3-η3-PhCCCC(H)Ph][μ3-NS(O)MePh]

Autor: Nadine Derrien, Vincent Ferrand, Carsten Bolm, Céline Gambs, Georg Süss-Fink, Helen Stoeckli-Evans
Rok vydání: 1997
Předmět:
Zdroj: Journal of Organometallic Chemistry. 549:275-282
ISSN: 0022-328X
DOI: 10.1016/s0022-328x(97)00507-x
Popis: The reaction of the electron-deficient cluster ( μ 2 -H)Ru 3 (CO) 9 [ μ 3 -NS(O)MePh] ( 1 ) with para -nitrotolane gives, with coupling of two alkyne units and elimination of the para -nitrophenyl fragment, the trinuclear complexes Ru 3 (CO) 9 [ μ 3 - η 3 -PhCCCC(H)Ph][ μ 2 -NS(O)MePh] ( 2 ) and Ru 3 ( μ 2 -CO)(CO) 7 [ μ 3 - η 3 -PhCCCC(H)Ph][ μ 3 -NS(O)MePh] ( 3 ). The resulting organic moiety, coordinated as μ 3 - η 3 -5e-donor best considered as a butenynyl (PhCCCC(H)Ph) ligand in 2 and as a butatrienyl (PhCCCC(H)Ph) ligand in 3 . From the reaction mixture, the two isomeric vinyl complexes Ru 3 ( μ 2 -CO) 2 (CO) 6 [ μ 2 - η 2 -PhCC(H)(C 6 H 4 - p -NO 2 )][ μ 3 - NS(O)MePh] ( 4a ) and Ru 3 ( μ 2 -CO) 2 (CO) 6 [ μ 2 - η 2 -(C 6 H 4 - p -NO 2 )C C(H)Ph]-[ μ 3 -NS(O)MePh] ( 4b ) complexes can also be isolated.
Databáze: OpenAIRE