Synthesis, characterization and temperature-triggered phase transition of organic-inorganic hybrid compound: (C6H18N2)(HSO4)2

Compound (C6H18N2)(HSO4)2 undergoes a reversible second-order phase transition at 247.7 K with a round peak-like dielectric anomaly. The phase transition of (C6H18N2)(HSO4)2 could be driven by the coupling of disorder-order transition of HSO4ˉ anions and reorientation motion of the flexible branched chain-like (C6H18N2)2+ cations.204