Two Monomeric Ruthenium Complexes Containing Bidentate Bis(diphenylphosphino) Ligands

The crystal structures of chloro­(η⁵-cyclopentadienyl)[methylenebis(diphenylphosphine-P)]ruthenium–chloroform (1/1), [RuCl(C₅H₅)(C₂₅H₂₂P₂)].CHCl₃, (A), and chloro(η⁵-cyclopentadienyl)[1,2-ethanediylbis(diphenylphosphine-P)] ruthenium–chloroform (1/1), [RuCl(C₅H₅)(C₂₆H₂₄P₂)].CHCl₃, (B), are reported. Both molecules contain a central ring structure in which a pair of P atoms, linked by a –CH–₂–[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.

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