RMMD-based clustering procedure was used to analyse structures obtained from simulations. Two algorithms were implemented: DBSCAN and K-means. DBSCAN is a density based clustering algorithm for which the parameter minpoints was set to 25 and the ϵ varied between 1.2 and 2.8Å(estimated with help of Kdist plot and for exact values see Table in Supporting Information) whereas K-means divides all obtain frames into N clusters . The number of clusters N was set to 10. Every 20-th frame was analyzed to make it more efficient and water molecules along with ions were excluded from the analysis.