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Computational quantum chemistry methods are used to study simultaneous cation-π and π–π stacking interactions with a graphene sheet and on the inner and outer faces of some bent graphenes as curved surfaces of carbon nanohorns (CNHs). Structural parameters and energy data of ternary benzene–graphene–Na+ and benzene-bent graphene–Na+ complexes are studied. Also, effects of charge transfer and aromaticity...
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