A Novel Organic-Inorganic Hybrid Material (BTTD)MnCl4 with Intelligent Switching Applications Derived from Unusual Wheels-Like Motion

In recent years, phase change materials (PCMs) have received extensive attention because of their applications in many fields, such as construction, semiconductor, energy and intelligent response switch. Organic-inorganic hybrid materials (OIHMs) are wide applied in the preparation of PCMs due to their controllability of organic and inorganic components. In this study, we successfully synthesized an organic-inorganic hybrid material (BTTD)MnCl4 (compound 1, BTTD=[(CH3)(2)NCH2Cl(CH2)(3)CH2ClN(CH3)(2)]. The purity of compound 1 was confirmed by PXRD. The crystal structure of compound 1 was analyzed at 300 K, 381 K and 400 K. The three different crystal structures prove the phase change of compound 1. According to the result of differential scanning calorimeter (DSC), the phase transition of compound 1 is reversible. Moreover, the measured bandgap (E-g) of 1 is 2.25 eV. The dielectric constant of compound 1 fluctuates near 370 K, indicating the changes of electrical properties, so compound 1 can be used to cut off circuit. This temperature is close to the boiling point of water under standard ambient conditions. Therefore, this work provides a new direction for the design of intelligent response switch for electric kettle.