The nature of [N–Cl–N]⁺and [N–F–N]⁺halogen bonds in solution

The solution symmetry of [N–Cl–N]⁺and [N–F–N]⁺halogen bonds is discussed, in comparison to the iodine and bromine-centered bonds as well as to the corresponding three-center [N–H–N]⁺hydrogen bond.