A 16-connected three-dimensional hydrogen-bonding network in tetra­kis­(4-amino­pyridinium) perylene-3,4,9,10-tetra­carboxyl­ate octa­hydrate

Numerous charge-assisted hydrogen bonds and [pi]-[pi] inter­actions link the counter-ions of tetra­kis­(4-amino­pyridinium) perylene-3,4,9,10-tetra­carboxyl­ate octa­hydrate into a three-dimensional framework. From the viewpoint of topology, each anion acts as a 16-connected node by hydrogen bonding to six cations and ten water mol­ecules to yield a highly connected hydrogen-bonding framework.