2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/158353Hyperfine interactions, magnetic interactions between the spins of electrons and nuclei, in graphene and related carbon nanostructures are studied. By using a combination of accurate first principles calculations on graphene fragments and statistical analysis, I show that both isotropic and dipolar hyperfine interactions can be accurately described in terms of the local electron spin distribution and atomic structure. A complete set of parameters describing the hyperfine interactions of C-13 and other nuclear spins at substitution impurities and edge terminations is determined.4+ pages, 2 figures. Improved and extended database of valuesMaterials ScienceMesoscale and Nanoscale Physicstext