rac-(E,E)-N,N′-Bis(2-chlorobenzylidene)cyclohexane-1,2-diamine

In the title racemic Schiff base ligand, C20H20Cl2N2, which was prepared by the condensation of 2-chlorobenzaldehyde and cyclohexane-1,2-diamine, the cyclohexane ring adopts a chair conformation and the dihedral angle between the aromatic rings of the 2-chlorophenyl substituent groups is 62.52 (8) . In the structure, there are two short intramolecular methine C— H Cl interactions [C Cl = 3.066 (2) and 3.076 (3) A], and in the crystal there are also weak intermolecular aromatic C— H Cl [3.464 (3), 3.553 (3) and 3.600 (3) A] and Cl Cl [3.557 (3) and 3.891 (3) A] contacts.