F-H···N hydrogen bonds: Influence of substituent and hybridization of nitrogen on H-bond properties and two-bond 19F-15N spin-spin coupling constants (2hJF-N)

Two-bond 19F-15N spin-spin coupling constants across F-H···N hydrogen bonds have been calculated to investigate the changes of 2hJF-N values with the hybridization of nitrogen atom in different H···N distances.