η6-Arene complexes of ruthenium and osmium with pendant donor functionalities

η6-Arene complexes of ruthenium and osmium with pendant donor functionalities

η6-Arene complexes of ruthenium and osmium with pendant donor functionalities
T. Reiner, M. Waibel, A.N. Marziale, D. Jantke, F. J. Kiefer, T. F. Fässler, J. Eppinger
Journal of Organometallic Chemistry, Volume 695, Issue 24, Pages 2667–2672, (2010)
T. Reiner, M. Waibel, A.N. Marziale, D. Jantke, F. J. Kiefer, T. F. Fässler, J. Eppinger
Ruthenium, Osmium, η6-Arene complexes, Pendant donor functionalities
2010
Conversion of 4′-(2,5-dihydrophenyl)butanol or N-trifluoroacetyl-2,5-dihydrobenzylamine with MCl3•n H2O (M = Ru, Os) affords the corresponding dimeric η6-arene complexes in good to excellent yields. Under similar reaction conditions, the amine functionalized arene precursor 2,5-dihydrobenzylamine yields the corresponding Ru(II) complex. For osmium, HCl induced oxidation leads to formation of [OsCl6]2− salts. However, under optimized reaction conditions, conversion of the precursor 2,5-dihydrobenzylamine chloride results in clean formation of η6-arene Os(II) complex. X-ray structures of [(η6-benzyl ammonium)(dmso)RuCl2] and (2,5-dihydrobenzyl ammonium)4[OsCl6]2confirm the spectroscopic data. High stability towards air and acid as well as enhanced solubility in water is observed for all η6-arene complexes.
 
 
 
10.1016/j.jorganchem.2010.08.008
0022328X