N,N '-bis(2-tosylaminobenzylidene)-benzene-1,2-diamine

The conformation of the title compound, C34H30N4O4S2, is strongly influence d by intramolecular N-H ... N hydrogen-bond interactions and by the rigidit y endowed by the presence of a phenyl group between the imine N atoms. The molecule is not planar, with very short distances between the imine N atoms [N ... N 2.753 (3) Angstrom] and the amine N atoms [N ... N 5.148 (4) Angs trom] Consequently, important changes in its conformation will be required if it is to act as a tetradentate ligand via its four N atoms.