Bis[(1S*,2S*)-trans-1,2-bis-(diphenyl-phosphin-oxy)cyclo-hexa-ne]chlorido-ruthenium(II) trifluoro-methane-sulfonate dichloro-methane disolvate.

The crystal structure of a racemic mixture of the title ruthenium(II) complex, [RuCl(C(30)H(30)O(2)P(2))(2)]CF(3)SO(3)·2CH(2)Cl(2), reveals that the coordination geometry about the coordinatively unsaturated metal centre is approximately trigonal-pyramidal, with the chlorine atom occupying one of the equatorial positions. The axial Ru-P bonds are longer than the equatorial Ru-P bonds and there is an acute P-Ru-P angle.