Preparation, Thermal, and Physical Properties of Perovskite-Type (C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>)<sub>2</sub>CdCl<sub>4</sub> Crystals
To investigate the thermal and physical properties of perovskite-type (C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>)<sub>2</sub>CdCl<sub>4</sub>, its temperature-dependent chemical shifts and spin⁻lattice relaxation times are measured...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-02-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/9/2/108 |
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| author | Ae Ran Lim Sun Ha Kim |
| author_facet | Ae Ran Lim Sun Ha Kim |
| author_sort | Ae Ran Lim |
| collection | DOAJ |
| description | To investigate the thermal and physical properties of perovskite-type (C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>)<sub>2</sub>CdCl<sub>4</sub>, its temperature-dependent chemical shifts and spin⁻lattice relaxation times are measured using thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), magic angle spinning nuclear magnetic resonance (MAS NMR), and static NMR methods. Above 300 K, two phase transitions are observed at 398 K and 538 K. Each proton and carbon in the (C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>) cation is distinguished in the MAS NMR results. The environments around <sup>1</sup>H, <sup>13</sup>C, and <sup>14</sup>N do not change with temperature according to the NMR spectra. In contrast, the resonance frequency of <sup>113</sup>Cd in the CdCl<sub>6</sub> octahedra decreases with increasing temperature, indicating an environmental change. The uniaxial rotations for <sup>1</sup>H and <sup>13</sup>C have high mobility at both high and low temperatures, and these are related to the phase transitions. In addition, the molecular motion of <sup>113</sup>Cd in the anion becomes activated upon raising the temperature. |
| first_indexed | 2024-04-11T11:03:46Z |
| format | Article |
| id | doaj.art-18432fabf0b24dc8b1dab5864807d3e0 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-04-11T11:03:46Z |
| publishDate | 2019-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-18432fabf0b24dc8b1dab5864807d3e02022-12-22T04:28:27ZengMDPI AGCrystals2073-43522019-02-019210810.3390/cryst9020108cryst9020108Preparation, Thermal, and Physical Properties of Perovskite-Type (C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>)<sub>2</sub>CdCl<sub>4</sub> CrystalsAe Ran Lim0Sun Ha Kim1Analytical Laboratory of Advanced Ferroelectric Crystals, Jeonju University, Jeonju 55069, KoreaKorea Basic Science Institute, Seoul Western Center, Seoul 120-140, KoreaTo investigate the thermal and physical properties of perovskite-type (C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>)<sub>2</sub>CdCl<sub>4</sub>, its temperature-dependent chemical shifts and spin⁻lattice relaxation times are measured using thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), magic angle spinning nuclear magnetic resonance (MAS NMR), and static NMR methods. Above 300 K, two phase transitions are observed at 398 K and 538 K. Each proton and carbon in the (C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>) cation is distinguished in the MAS NMR results. The environments around <sup>1</sup>H, <sup>13</sup>C, and <sup>14</sup>N do not change with temperature according to the NMR spectra. In contrast, the resonance frequency of <sup>113</sup>Cd in the CdCl<sub>6</sub> octahedra decreases with increasing temperature, indicating an environmental change. The uniaxial rotations for <sup>1</sup>H and <sup>13</sup>C have high mobility at both high and low temperatures, and these are related to the phase transitions. In addition, the molecular motion of <sup>113</sup>Cd in the anion becomes activated upon raising the temperature.https://www.mdpi.com/2073-4352/9/2/108perovskite(C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>)<sub>2</sub>CdCl<sub>4</sub>NMRphase transition |
| spellingShingle | Ae Ran Lim Sun Ha Kim Preparation, Thermal, and Physical Properties of Perovskite-Type (C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>)<sub>2</sub>CdCl<sub>4</sub> Crystals Crystals perovskite (C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>)<sub>2</sub>CdCl<sub>4</sub> NMR phase transition |
| title | Preparation, Thermal, and Physical Properties of Perovskite-Type (C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>)<sub>2</sub>CdCl<sub>4</sub> Crystals |
| title_full | Preparation, Thermal, and Physical Properties of Perovskite-Type (C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>)<sub>2</sub>CdCl<sub>4</sub> Crystals |
| title_fullStr | Preparation, Thermal, and Physical Properties of Perovskite-Type (C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>)<sub>2</sub>CdCl<sub>4</sub> Crystals |
| title_full_unstemmed | Preparation, Thermal, and Physical Properties of Perovskite-Type (C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>)<sub>2</sub>CdCl<sub>4</sub> Crystals |
| title_short | Preparation, Thermal, and Physical Properties of Perovskite-Type (C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>)<sub>2</sub>CdCl<sub>4</sub> Crystals |
| title_sort | preparation thermal and physical properties of perovskite type c sub 3 sub h sub 7 sub nh sub 3 sub sub 2 sub cdcl sub 4 sub crystals |
| topic | perovskite (C<sub>3</sub>H<sub>7</sub>NH<sub>3</sub>)<sub>2</sub>CdCl<sub>4</sub> NMR phase transition |
| url | https://www.mdpi.com/2073-4352/9/2/108 |
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