| Pressure-induced isosymmetric phase transition in sulfamic acid: A combined Raman and x-ray diffraction study |
| Li, Q; Li, SR; Wang, K; Li, XD; Liu, J; Liu, BB; Zou, GT; Zou, B;李晓东; Liu J(刘景)
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| 2013
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| 发表期刊 | JOURNAL OF CHEMICAL PHYSICS
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| 卷号 | 138期号:21页码:214505 |
| 摘要 | High-pressure behaviors of hydrogen-bonded molecular crystal, sulfamic acid (NH3+SO3-, SA), have been investigated using Raman spectroscopy and synchrotron X-ray diffraction (XRD) techniques up to the pressure of similar to 20 GPa. Under ambient conditions, molecules of SA are arranged in puckered layers and held together by hydrogen bonding and electrostatic interactions. It is proved by the Raman results that SA undergoes the molecular conformation changes in the pressure range 8.1-10.2 GPa. Then between 10.2 and 12.7 GPa, a phase transition is observed in both Raman and XRD patterns. Both the ambient and high-pressure phases of SA crystallize in Pbca symmetry with similar unit-cell dimensions. The mechanism of the phase transition involves relative movements of adjacent hydrogen-bonded molecules, accompanied by the rearrangement of hydrogen bonds and the enhancement of electrostatic interactions. (C) 2013 AIP Publishing LLC. |
| 学科领域 | Physics
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| DOI | 10.1063/1.4807864
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| 收录类别 | SCI
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| WOS记录号 | WOS:000320138900037
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.ihep.ac.cn/handle/311005/224674
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| 专题 | 多学科研究中心
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推荐引用方式
GB/T 7714 |
Li, Q,Li, SR,Wang, K,et al. Pressure-induced isosymmetric phase transition in sulfamic acid: A combined Raman and x-ray diffraction study[J]. JOURNAL OF CHEMICAL PHYSICS,2013,138(21):214505.
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| APA |
Li, Q.,Li, SR.,Wang, K.,Li, XD.,Liu, J.,...&刘景.(2013).Pressure-induced isosymmetric phase transition in sulfamic acid: A combined Raman and x-ray diffraction study.JOURNAL OF CHEMICAL PHYSICS,138(21),214505.
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| MLA |
Li, Q,et al."Pressure-induced isosymmetric phase transition in sulfamic acid: A combined Raman and x-ray diffraction study".JOURNAL OF CHEMICAL PHYSICS 138.21(2013):214505.
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