[1L-3,4-Bis-O-(diphenyl­phosphino)-1,2,5,6-tetra-O-methyl-chiro-inositol-κ²P,P′][η⁴-(Z,Z)-cyclo­octa-1,5-diene]rhodium(I) tetra­fluorido­borate chloro­form solvate

The title compound, [Rh(C₈H₁₂)(C₃₄H₃₈O₆P₂)]BF₄·CHCl₃, a novel asymmetric hydrogenation catalyst, crystallizes with two independent almost identical cations and anions. Cell-packing inter­actions are provided by nonclassical hydrogen bonding between phenyl and chloro­form H atoms and fluoro and chloro donors of the BF₄⁻ anion and the chloro­form solvent mol­ecule.