The atomic radius of chloride is 175pm.Fluoride
coordinates four water molecules in aqueous media, and each coordination bond is worth 16kJ/mol. Chloride is able to coordinate six water molecules, with each bond having an energy of 12kJ/mol. In the GluClCh, chloride forms six coordination bonds with the protein channel worth 14kJ/mol each and fluoride forms 4 bonds with the protein channel worth 12kJ/mol each. What is the overall delta G for the desolvation of each ion in the channel? Why is the channel selective for chloride?