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A novel inorganic-organic hybrid supramolecular compound,[(3-nitroanilinium~+)(18-crown-6)][IO_4](CH_3OH)(1),was discovered as phase-transition materials displaying dielectric anomalous behaviors.The yellow block crystal formed by N-H…O hydrogen bonding that made contact through the cavity of 18-crown-6 was characterized by single-crystal X-ray diffraction,elemental analysis,infrared analysis,thermogravimetric analysis,differential scanning calorimetry,and potential-energy calculations.Differential scanning calorimetry measurements indicate that the compound experiences a reversible phase transition at around 220 K.Temperature-dependent dielectric measurements further confirm the phase transitions.Potential-energy calculations demonstrate that the phase transition occurs due to the molecular order-disorder rotation of CH_3OH,whereas the space grouping of the crystal remains unchanged.
A novel inorganic-organic hybrid supramolecular compound was found as phase-transition materials displaying dielectric anomalous behaviors. The yellow block [(3-nitroanilinium ~ +) (18-crown-6)] [IO_4] (CH_3OH) crystal formed by NH ... O hydrogen bonding that made contact through the cavity of 18-crown-6 was characterized by single-crystal X-ray diffraction, elemental analysis, infrared analysis, thermogravimetric analysis, differential scanning calorimetry, and potential-energy calculations. Differential scanning calorimetry measurements indicate that the compound experiences a reversible phase transition at around 220 K. Temperature-dependent dielectric measurements further confirm the phase transitions. Potential-energy calculations demonstrate that the phase transition occurs due to the molecular order-disorder rotation of CH_3OH, but the space grouping of the crystal remains unchanged.