(2S)-1,1-Dichloro-2-(2-chloro-phen-yl)-2-(4-chloro-phen-yl)ethane.

The title compound, C(14)H(10)Cl(4), is easily crystallized while the other enanti-omorph only forms an oil upon crystallization attempts. The title compound has a considerably higher density, ρ ≃ 1.562 Mg m(-3) compared to the racemic substance, ρ ≃ 1.514 Mg m(-3). This is supported by the fact there are two inter-molecular halogen-halogen contacts in the title compound compared with only one the racemic compound. The dihedral angle between the two phenyl rings is 76.83 (5)°