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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)
2013
发表期刊JOURNAL OF CHEMICAL PHYSICS
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
DOI10.1063/1.4807864
收录类别SCI
WOS记录号WOS:000320138900037
引用统计
被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224674
专题多学科研究中心
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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.
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.
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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