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Structural and vibrational properties of phenanthrene under pressure
Huang, QW; Zhang, J; Berlie, A; Qin, ZX; Zhao, XM; Zhang, JB; Tang, LY; Liu, J; Zhang, C; Zhong, GH; Lin, HQ; Chen, XJ;刘景
2013
发表期刊JOURNAL OF CHEMICAL PHYSICS
卷号139期号:10页码:104302
摘要The structural and vibrational properties of phenanthrene are measured at high pressures up to 30.2 GPa by Raman spectroscopy and synchrotron X-ray diffraction techniques. Two phase transitions are observed in the Raman spectra at pressures of 2.3 GPa and 5.4 GPa which correspond to significant changes of intermolecular and intramolecular vibrational modes. Above 10.2 GPa, all the Raman peaks are lost within the fluorescence background; however, upon further compression above 20.0 GPa, three broad peaks are observed at 1600, 2993, and 3181 cm(-1), indicating that phenanthrene has transformed into amorphous phase. Using X-ray diffraction, the structures of corresponding phases observed from Raman spectra are indexed with space groups of P2(1) for phase I (0-2.2 GPa), P2/m for phase II (2.2-5.6 GPa), P2/m+Pmmm for phase III (5.6-11.4 GPa) which has a coexistence of structures, and above 11.4 GPa the structure is indexed with space group of Pmmm. Although phenanthrene has transformed to a hydrogenated amorphous carbon structure above 20.0 GPa, these amorphous clusters still show characteristic crystalline behavior based on our X-ray diffraction patterns. Our results suggest that the long-range periodicity and the local disorder state coexist in phenanthrene at high pressures. (C) 2013 AIP Publishing LLC.
学科领域Physics
DOI10.1063/1.4820359
收录类别SCI
WOS记录号WOS:000324387400021
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被引频次:15[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/311005/224615
专题多学科研究中心
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Huang, QW,Zhang, J,Berlie, A,et al. Structural and vibrational properties of phenanthrene under pressure[J]. JOURNAL OF CHEMICAL PHYSICS,2013,139(10):104302.
APA Huang, QW.,Zhang, J.,Berlie, A.,Qin, ZX.,Zhao, XM.,...&Chen, XJ;刘景.(2013).Structural and vibrational properties of phenanthrene under pressure.JOURNAL OF CHEMICAL PHYSICS,139(10),104302.
MLA Huang, QW,et al."Structural and vibrational properties of phenanthrene under pressure".JOURNAL OF CHEMICAL PHYSICS 139.10(2013):104302.
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