Phase Transition and Thermochromism of the Hybrid (C12H25NH3)2FeCl4

L.L. Guo; Y.D. Dai; H.X. Liu; Shi Xi Ouyang

doi:10.4028/www.scientific.net/SSP.111.55

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Phase Transition and Thermochromism of the Hybrid (C₁₂H₂₅NH₃)₂FeCl₄

Abstract:

This paper focuses on the structural change and the thermochromism of the phase transition of the hybrid (C12H25NH3)2FeCl4. The temperature and the structures of the phase transition is investigated by a thermal gravimetry (TG) and differential scanning calorimetry (DSC), an infrared spectra (IR) and X-ray diffraction (XRD) patterns. The UV adsorption spectra account for the thermochromism. The results suggest that the reversible phase transition arises from the structural changes of the organic chains. The thermochromism is presumably due to the electrons redistribution on the levels and to the energy transition to translational and rotational motions of the organic chains.