Novel parallel stacking interactions of aromatic molecules

Properties of nanosystems containing aromatic rings can depend on noncovalent interactions of aromatic rings. This review is about novel parallel alignment interactions between aromatic rings and water and stacking parallel interactions between aromatic rings at large horizontal displacements. Novel parallel stacking interactions of aromatic rings show that aromatic rings have capability to form parallel interactions with substantial energy at very large parallel displacements (offsets), out of the ring, even beyond the C-H bond region, where two rings almost do not overlap. Interactions of aromatic rings at large offsets were neglected until recently. Recognizing these interactions in nanosystems can help to understand and predict properties of the systems. © 2015 by Apple Academic Press, Inc