(η 4 -1,5-Cyclooctadiene)[( R )-(+)-5,5′,6,6′,7,7′,8,8′-octahydro-2,2′-bis(diphenylphosphanyl)-1,1′-binaphthyl-κ 2 P , P ′]rhodium(I) tetrafluoroborate 0.72-pentane 0.56-methanol solvate

The title compound, [Rh(C 8 H 12 )(C 44 H 20 P 2 )]BF 4 ·0.72C 5 H 12 ·0.56·CH 4 O, crystallizes in the Sohncke space group P 2 1 . The Rh I centre is coordinated by a H 8 -BINAP 5,5′,6,6′,7,7′,8,8′-octahydro-2,2′-bis(diphenylphosphanyl)-1,1′-binaphthyl ligand and by a bidentate η 2 ,η 2 -coordinated cod (cycloocta-1,5-diene) ligand. The asymmetric unit contains one cation, one anion and cocrystallized pentane [occupancy 0.720 (4)] and methanol [2 × 0.280 (4) occupancy] molecules. The rhodium(I) complex [Rh(H 8 -BINAP)(cod)]BF 4 has been applied as a precatalyst in the asymmetric intramolecular [2+2+2] cycloaddition of enediynes, affording excellent enantiomeric excesses [Shibata et al. (2007). J. Org. Chem . 72 , 6521–6525].