Two monomeric ruthenium complexes containing bidentate bis(diphenylphosphino) ligands

Article abstract of DOI:10.1107/S0108270195011802

The crystal structures of chloro(η ⁵-cyclopentadienyl)-[methylenebis(diphenylphosphine-P)]ruthenium- chloroform (1/1), [RuCl(C₅H₅)(C₂₅H₂₂P ₂)].CHCl₃, (A), and chloro(η ⁵-cyclopentadienyl)[1,2-ethanediylbis(diphenylphosphine-P)]ruthenium- chloroform (1/1), [RuCl(C₅-H₅)(C₂₆H₂₄P ₂)].CHCl₃, (B), are reported. Both complexes contain a central ring structure in which a pair of P atoms, linked by a -CH₂- [in (A)] or a -C₂H₄-[in (B)] group, are bonded to a central Ru atom. The P-Ru-P bond angle undergoes expansion from 72.07 (2)° in (A) to 83.48 (2)° in (B). The bond distances around the Ru center are compared with values reported for similar compounds. Both structures include a chloroform solvent molecule in addition to the ruthenium complex. The chloroform molecule in (A) was found to be disordered.