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Reversible phase transition driven by order–disorder transformations of metal-halide moieties in [(C6H14)NH2]2·CuBr4
- Source :
- Journal of Materials Chemistry C. 4:7537-7540
- Publication Year :
- 2016
- Publisher :
- Royal Society of Chemistry (RSC), 2016.
-
Abstract
- A novel phase transition has been discovered where the phase transition is primarily accomplished by the order–disorder transformation of metal-coordinated halogen atoms in an organic–inorganic hybrid material [(C6H14)NH2]2·CuBr4 (1). Its phase transition behaviour was verified by specific heat capacity (Cp) and differential scanning calorimetry (DSC) measurements with a thermal hysteresis at 4.8 K. The dielectric measurements of 1 show a distinct step-like anomaly around Tc, demonstrating two states at two different phases, which enlightens that 1 can be conceived as a potential switchable dielectric material. Moreover, temperature-dependent single-crystal X-ray diffraction analyses of 1 disclose that disordering of metal-halides together with reorientations of the cations is the cause of this unique phase-transition material. All these results open a new way to design and assemble novel phase transition materials.
- Subjects :
- Diffraction
Phase transition
Materials science
Halide
02 engineering and technology
General Chemistry
Dielectric
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Heat capacity
0104 chemical sciences
Metal
Crystallography
Differential scanning calorimetry
visual_art
Materials Chemistry
visual_art.visual_art_medium
0210 nano-technology
Hybrid material
Subjects
Details
- ISSN :
- 20507534 and 20507526
- Volume :
- 4
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Chemistry C
- Accession number :
- edsair.doi...........661efe4d804f5743f6ba0533e87bac6e