M. Barral, R. Jiménez-Aparicio, J. L. Priego
Dec 1, 1993
Citations
0
Influential Citations
9
Citations
Journal
Polyhedron
Abstract
Abstract The reaction between Ru2Cl(μ-O2CCH3)4 and molten p-tert-butylbenzamide led to the formation of Ru2Cl(μ-HNOCC6H4-p-CMe3)4. The polymeric structure of this insoluble compound was broken with AgBF4, in anhydrous thf, giving [Ru2(μ-HNOCC6 H4-p-CMe3)4(thf)2]BF4. The reaction of this cationic complex with OPPh3 gave [Ru2(μ-HNOCC6H4-p-CMe3)4(OPPh3)2]BF4. The compounds have been characterized by elemental analysis, spectroscopic data and magnetic measurements and the crystal structure of [Ru2(μ-HNOCC6H4-p-CMe3)4(OPPh3)2]BF4 was determined by X-ray crystallography. The asymmetric unit is composed of halves of two different crystallographically independent centrosymmetric cations. Each ruthenium(II,III) dimer is bonded to four bridging p-tert-butylbenzamidate ligands and to two axial triphenylphosphine oxide molecules. The RuRu distances in the two dimeric cations of the unit cell are 2.281(2) and 2.280(2) A. The compound has a non-polar 2 : 2 arrangement of the tert-butylbenzamidate ligands.