N,N′‐Bis(2‐ammonioethyl)propane‐1,3‐diaminium tris(perchlorate) chloride

The crystal structure of the title compound, C₇H₂₄N₄⁴⁺·3ClO₄⁻·Cl⁻, is mainly determined by electrostatic interactions between the charged species and a number of relatively weak N—H...O and N—H...Cl⁻ hydrogen bonds. The rich structure of such hydrogen bonds creates infinite layers of ions extending along the 001] direction. The tetracation has the gttttttg conformation, similar to the single previously known example of such a cation. The presence of two different anions can be connected with the undecided competition between them, and some of the packing advantages of such a situation are found in the crystal structure.