Hydrogen bis[L-lysinium(2+)] dichloride perchlorate

In the title compound, 2C(6)H(15)N(2)O(2)(+).H+. ClO4-. 2Cl(-), the two mon o- and dicationic lysinium molecules are held together by strong O-H . . .O hydrogen bonds. Both the perchlorate and chloride anions link molecules 1 and 2 through the alpha -amino and epsilon -amino groups into infinite chai ns along the a axis. The aggregation of the hydrophilic groups is along the z = 0 plane and that of hydrophobic is along the z = 1/4 plane. Molecule 1 is engaged in a zigzag (Z1) head-to-tail sequence.