(E,E)-N,N'-Bis[4-(methyl-sulfon-yl)benzyl-idene]ethane-1,2-diamine

Abstract

In the crystal structure of the title Schiff base compound, C(18)H(20)N(2)O(4)S(2), the mol-ecule lies across a crystallographic inversion centre. The torsion angle of the N-C-C-N fragment is 180°, as the inversion centre bis-ects the central C-C bond. The crystal packing is stabilized by C-H⋯O hydrogen bonds and aromatic π-π stacking inter-actions with a centroid-centroid distance of 3.913 (2) Å.

Fig. 1.

The structure of (I), showing the atom-labelling scheme. Displacement ellipsoids are drawn at the 35% probability level. The molecule is completed by symmetry operation (-x, -y, 2-z) across the central C—C bond.

Fig. 2.

Plot of the crystal packing of compound (I). C—H···O hydrogen bonds are indicated with dotted lines.