(2 E ,2' E )-1,1'-([1,1'-Biphen-yl]-4,4'-di-yl)bis-[3-(di-meth-yl-amino)-prop-2-en-1-one].

The title compound, C 22 H 24 N 2 O 2 , crystallizes in space group P 2 1 / n . The mol-ecular structure is almost planar except for a tilt of the phenyl rings. The allyl groups on both ends exhibit the trans -form and the connected N atoms show sp 2 character. The mol-ecules are stacked and assembled along the c -axis direction by C-H⋯π inter-actions.