摘要:
Complexes possessing a soft donor eta(6)-arene and hard donor acetylacetonate ligand, [(eta(6)-p-cymene) Ru(kappa(2)-O,O-acac-mu-CH)](2)[OTf](2) (1) (OTf = trifluoromethanesulfonate; acac = acetylacetonate) and [(eta(6)-p-cymene)Ru(kappa(2)-O,O-acac)(THF)][BAr'(4)] (2) {Ar' = 3,5-(CF3)-C6H3}, were prepared and fully characterized. The lability of the mu-CH linkage for complex 1 and the THF ligand of 2 allow access to the unsaturated cation [(eta(6)-p-cymene) Ru(kappa(2)-O,O-acac)](+). The reaction of [(eta(6)-p-cymene)Ru(kappa(2)-O,O-acac)(THF)][BAr'(4)] (2) with KTp {Tp = hydridotris(pyrazolyl)borate} produces [TpRu(eta(6)-p-cymene)][BAr'(4)] (5). The azide complex [(eta(6)-p-cymene)Ru(kappa(2)-O,O-acac) (N3Ar)][BAr'(4)] (6) forms upon reaction of [(eta(6)-p-cymene)Ru(kappa(2)-O,O-acac)(THF)][BAr'(4)] (2) with N3Ar (Ar = p-tolyl), and reaction of [(eta(6)-p-cymene)Ru(kappa(2)-O,O-acac)(THF)][BAr'(4)] (2) with CHCl3 at 100 degrees C yields the chloride-bridged binuclear complex [{(eta(6)-p-cymene)Ru}(2)(mu-Cl)(3)][BAr'(4)] (7). The details of solid-state structures of [(eta(6)-p-cymene)Ru(kappa(2)-O,O-acac-mu-CH)](2)[OTf](2) (1), [TpRu(eta(6)-p-cymene)][BAr'(4)] (5) and [{(eta(6)-p-cymene)Ru}(2)(mu-Cl)(3)][BAr'(4)] (7) are disclosed. (C) 2007 Elsevier B.V. All rights reserved.