4-(Dimethylamino)benzaldehyde

Abstract

The title compound, C9H11NO, crystallizes with two independent but essentially identical molecules in the asymmetric unit, which are linked via a C—H...π interaction. In both molecules, the aldehyde and dimethylamine groups are essentially coplanar with the attached benzene ring. In the crystal structure, C—H...O hydrogen bonds link one type of independent molecules into a chain along the a axis. In addition, the structure is stabilized by π–π stacking interactions involving the benzene rings [centroid-to-centroid distance = 3.697 (2) Å].