Abstract
The reaction of [CpRu(PPh3)2(n-C3H7SH)]BF4 with dithiooxamide (dtoxa) gave two products: {[CpRu(PPh3)2]2(μ-dtoxa)} (BF4)2,1, and [CpRu(PPh3)(dtoxa-H2O)]BF4,2. The structures of both complexes were determined by X-ray diffraction techniques. Compound1 crystallized in the triclinic space groupP¯1,a=12.822(4),b=14.16(1),c=23.631(8) A,α=84.57(4),β=83.64(3), γ=83.57(4)°,Z=2,R=0.069,Rw=0.084. The structure of1 shows two CpRu(PPh3)2+ units bridged through the S atoms of the dtoxa ligand. Ru-S distances are 2.377(6)A for Ru1-S1 and 2.368(6) A for Ru2-S2. Compound2 crystallized in the monoclinic space groupP21/c,a=13.446(3),b=13.461(7),c=31.214(7) A,β=100.78(3)°,Z=8,R=0.054,Rw=0.055. The structure of2 has two molecules in the asymmetric unit. The Ru is chelated to the dtoxa through the S atoms: Ru1-S1, 2.307(4); Ru1-S2, 2.300(4); Ru2-S3, 2.295(4); Ru2-S4, 2.287(4) A. The coordination sphere of the Ru in2 is completed by a cyclopentadienyl ligand and a triphenylphosphine.
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