(R)1[(1S)2(di-C-hexylphosphino)ferrocen. ]et-dicyclohexylphos; (R)-(-)-1-[(S)-2-Dicyclohexylphosphino)ferrocenyl]ethyldicyclohexylphosphine; (R)-1-[(1S)-2-(Dicyclohexylphosphino)ferrocenyl]ethyldicyclohexylphosphine; Josiphos SLJ003-1; 1,2,3,4,5-cyclopentanepentayl, compd. with 1-(dicyclohexylphosphino)-2-[(1R)-1-(dicyclohexylphosphino)ethyl]-1,2,3,4,5-cyclopentanepentayl, iron salt (1:1:1)