noncovalent
![[CleanShot 2023-10-12 at 00.19.19@2x.png]] Electrostatic forces diminish as the inverse square of the distance between the charges. Whereas van der Waals forces fall off as the sixth power of the separation and only operate over very small ranges.
Side chains of aromatic amino acids such as tyrosine can interact noncovalently through their pi-electron system with nearby cations, including nitrogen-containing side chains that may be in a protonated cationic state.
2022-11-17T14:37