Title of article :
Octahedral ruthenium(II) complexes containing the chiral ligand (4S)-2-[(Sp)-2-(diphenylphosphino)ferrocenyl]-4-(isopropyl)oxazoline (FcPN). X-Ray crystal structures of fac-[RuCl2(PMe3)2(FcPN)] and fac-[RuCl2(dppm)(FcPN)] (dppm=bis(diphenylphosphino)metha
Author/Authors :
Jose Gimeno، نويسنده , , Elena Lastra، نويسنده , , César Madrigal، نويسنده , , Claudia Graiff، نويسنده , , Antonio Tiripicchio، نويسنده ,
Issue Information :
دوفصلنامه با شماره پیاپی سال 2001
Abstract :
Octahedral ruthenium(II) complexes containing the chiral ligand (4S)-2-[(Sp)-2-(diphenylphosphino)ferrocenyl]-4-(isopropyl)oxazoline (FcPN) have been prepared from complex [RuCl2(PPh3)(FcPN)] (1) via phosphine exchange reactions. Complex 1 reacts with PMe3, PMe2Ph, bis(diphenylphosphino)methane (dppm) and 1,2-bis(diphenylphosphino)ethane (dppe) affording in good yield the complexes [RuCl2L2(FcPN)] (L=PMe3 (2a), PMe2Ph (2b)) and [RuCl2(L–L)(FcPN)] (L–L=dppm (3a), dppe (4)). The processes are stereoselective giving rise to the thermodynamically stable fac isomers. The kinetically controlled formation of the mer isomer [RuCl2(dppm)(FcPN)] (3b) is also described. Structural characterization of the complexes has been carried out by means of 1H-, 31P{1H}- and 13C{1H}-NMR spectroscopy and the crystal structures of the complexes 2a and 3a have been determined by X-ray diffraction methods.
Keywords :
Ruthenium(II) , chiral ligand , Ferrocenylphosphine , Ferrocenyloxazoline
Journal title :
Journal of Organometallic Chemistry
Journal title :
Journal of Organometallic Chemistry