| 초록 |
It is important to understand supramolecular interactions in organic crystal. The molecular conformation and packing arrangement in the crystalline state can be controlled by tuning supramolecular interactions. In this study, we investigated a new phenyltriene derivative with benzyl group; (2-(3-(4-(benzyloxy)styryl)-5,5-dimethylcyclohex-2-enylidene)malononitrile: BOPCMN), and compared with a well-known phenyltriene crystal (2-(3-(4-hydroxystyryl)-5,5-dimethylcyclohex-2-enylidene)malononitrile: OH1). In OH1 having hydroxy group, it has planar structure conformation, thus shows face-to-face aromatic π- π stacking interactions. In contrast, BOPCMN having benzyl group as a building block exhibited a twisted conformation with a large torsion angle. It is due to intermolecular interactions between benzyl and phenyltriene groups, consequently exhibits edge-to-face aromatic interactions in crystalline state. |
