[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.