Substituent and Heteroatom Effects on π–π Interactions . . . ABSTRACT: Stacking interactions are a recurring motif in supramolecular chemistry and biochemistry, where a persistent theme is a preference for parallel-displaced aromatic rings rather than face-to-face π-stacking
6. 5. 1: Host-Guest Chemistry and π-π Stacking Interactions These interactions are so named because they occur when the planes of aromatic rings are stacked parallel to one another This parallel stacking can occur in either a sandwich or a displaced stacking arrangement
Stacking (chemistry) - Wikipedia What is more commonly observed are either a staggered stacking (parallel displaced) or pi-teeing (perpendicular T-shaped) interaction both of which are electrostatic attractive [13]
Stacking interactions of aromatic ligands in transition metal . . . The most stable stacking interaction in the benzene dimer is parallel-displaced (Fig 1), with horizontal displacement of 1 55 Å and normal distance of 3 41 Å, and interaction energy of –2 73 kcal mol [10] This geometry is significantly more stable than face-to-face stacking orientation [10]
Journal of the American Chemical Society - ACS Publications Stacking interactions are a recurring motif in supramolecular chemistry and biochemistry, where a persistent theme is a preference for parallel-displaced aromatic rings rather than face-to-face π-stacking
Substituent and heteroatom effects on parallel-displaced pi . . . Stacking interactions are a recurring motif in supramolecular chemistry and biochemistry, where a persistent theme is a preference for parallel-displaced aromatic rings over face-to-face pi-stacking The Hunter-Sanders model purports to explain this preference in terms of quadrupolar electrostatics but that interpretation is inconsistent with
Unraveling the Origin of Substituents Effects in π-Stacking . . . Perhaps more importantly, the non-covalent interactions operative in the T-shaped and edge-to-face dimers are qualitatively different from those in either the sandwich or parallel displaced benzene dimer