Abstract
The title compound, N,N′-bis(trans-cinnamaldehyde)ethylenediimine (ca2en), C20H20N2, was synthesized and structurally characterized by single-crystal X-ray diffraction. The compound crystallizes with two formula units in the monoclinic space group P21/c with lattice parameters (295 K) of a = 13.542(3), b = 7.6459(17), c = 8.1023(18)Å and β = 96.043(4)°. The molecule lies across a crystallographic inversion centre and has a trans configuration (E, E).