The effect of carbon hybridization and halogen-acceptor type on some calculated NMR data in C−X⋯H−F hydrogen bonds

It is found that unlike ΔE, 1hJX-H, and 2hJX-F values. The isotropic value of the proton shielding tensor of hydrogen fluoride increases as follows: C(sp) > C(sp2) > C(sp3) in C−X⋯H−F (X = 19F, 35Cl, 81Br) hydrogen bonds. This trend for fluorine of hydrogen fluoride depends on halogen-acceptor type.