The amphiprotic cyclophosphazene {CH₃O(CH₂)₃NH}₆P₃N₃ (1) incorporates lithium chloride via successive protonation with HCl and deprotonation with BuⁿLi (or vice versa) to generate the coordination polymer 1·2LiCl, a molecular model compound for lithium ion containing solid polymer electrolytes.