Replacement of [RuH2(PMe3)4] by [RuH2(PEt3)4] switches reaction products: synthesis of fluoride-bridged diruthenium complexes
Abstract
The fluoride-bridged ruthenium dimers [Ru2(μ-F)3(PR3)6][F(HF)n] (R = Et, Pr, Bu; n ≈ 3) were synthesised by the reactions of the cis-[RuH2(PR3)4] complexes with NEt3·3HF in THF; the crystal structure of [Ru2(μ-F)3(PEt3)6]OTf, formed by subsequent reaction with NH4OTf, reveals Ru–F distances in the range 2.132(2)–2.170(2) Å and Ru–F–Ru angles in the range 91.72(7)–93.02(7)°.