Phase transition and switchable dielectric behaviours in an organic–inorganic hybrid compound: (3-nitroanilinium) <sub>2</sub> (18-crown-6) <sub>2</sub> (H <sub>2</sub> PO <sub>4</sub> ) <sub>2</sub> (H <sub>3</sub> PO <sub>4</sub> ) <sub>3</sub> (H <sub>2</sub> O)
Royal Society open science