Raffael Schuecker

rac-Dichlorido(1-{(diphenyl-phosphan-yl)[2-(diphenyl-phosphan-yl)phen-yl]meth-yl}ferrocene-κP,P')palladium(II) dimethyl sulfoxide disolvate.

The racemic title compound, [FePdCl2(C5H5)(C36H29P2)]·2(CH3)2SO, features a Pd-chelating 1,3-diphosphine, which is substituted at a P-bearing asymmetric C atom by a ferrocenyl group. The PdII atom is in a distorted quadratic coordination by two P and two Cl atoms with bond lengths of 2.2414 (3) and 2.2438 (3) Å for Pd—P, and 2.3452 (3) and 2.3565 (3) Å for Pd—Cl. The conformation of the Pd complex is controlled by an intramolecular slipped π–π stacking interaction between a phenyl and a cyclopentadienyl ring with corresponding C⋯C distances starting at 3.300 (2) Å and the distance between ring centroids being 3.674 (2) Å. The crystal structure is stabilized by C—H⋯Cl and C—H⋯O hydrogen bonds. The (CH3)2SO solvent molecules are arranged in layers parallel to (101) and are linked in pairs by C—H⋯O interactions. One (CH3)2SO molecule is orientationally disordered [occupancy ratio 0.8766 (17):0.1234 (17)] with sulfur in two positions at both sides of its C2O triangle.

(R,R(Fc),S(Ru))-Chlorido(η-p-cymene){1-[1-(diphenyl-phosphanyl)ethyl]-2-[2-(diphenyl-phosphanyl)phenyl]ferrocene-κP,P'}ruthenium(II) hexa-fluorido-phosphate.

The asymmetric unit of the title compound, [FeRuCl(C5H5)(C10H14)(C37H31P2)]PF6, contains two independent, geometrically similar RuII complexes of a chiral ferrocenyldiphosphane with piano-stool coordination through the η6-bound p-cymene ligand, two chelating phosphorus donor atoms, and an exo-oriented chloride ion. The mean bond lengths of the two Ru complexes are Ru—C = 2.276 Å, Ru—P = 2.3816 Å, and Ru—Cl = 2.3924 Å. Both chloride ligands form only intramolecular C—H⋯Cl interactions. Seven weak intermolecular C—H⋯F interactions involving mainly arene H atoms consolidate the crystal packing, which reveals an approximate c/2 pseudo-translation relating the two independent Ru complex molecules.