In Situ Synchrotron X-ray Diffraction and Raman Spectroscopy Studies of Gd@C-82-S-8 under High Pressure

doi:10.1021/acs.jpcc.8b02180

	In Situ Synchrotron X-ray Diffraction and Raman Spectroscopy Studies of Gd@C-82-S-8 under High Pressure
	Xu, BG; Dong, JQ; Gao, XF; Li, YC; Sun, BY; Li, XD; Yao HL(要换丽); Li C(李成); Cui RL(崔荣丽); Huang H(黄换)
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2018
卷号	122 期号:20 页码:10992-10998
ISSN号	1932-7447
DOI	10.1021/acs.jpcc.8b02180
文献子类	Article
英文摘要	The structural transformation and mechanical properties of fullerenes under high pressure have attracted a significant interest. However, the research data on the large-cage endohedral metallofullerenes are still rare. Here, we first report high-pressure studies on a new cocrystal Gd@C-82-S-8 by in situ X-ray diffraction (XRD) and Raman spectroscopy. The high-pressure XRD data and Raman findings provide consistent evidence of no structural phase transition in Gd@C-82 -S-8 before a pressure-induced irreversible amorphization at about 23 GPa and an anisotropic deformation of the C-82 cage upon compression. The bulk modules is as high as 44 GPa and the embedded Gd atom has a great effect on the pressure behavior of Gd@C-82, especially on the restraint of the compression of the adjacent bonds. The assignment of Raman-active vibrational modes and their corresponding eigenvectors of Gd@C-82 are presented for the first time by the theoretical calculation. Our findings provide new insights into the structural transformation of metallofullerenes under pressure and even contribute to prepare desired carbon materials with new structures and properties.
WOS关键词	ORDERED CARBON CLUSTERS ; INFRARED-SPECTROSCOPY ; BUILDING-BLOCKS ; METALLOFULLERENES ; FULLERENE ; TEMPERATURE ; CRYSTAL ; PHOTOLUMINESCENCE ; POLYMERIZATION ; DEFORMATION
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
WOS记录号	WOS:000433403400035
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/285963]
专题	高能物理研究所_多学科研究中心高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Xu, BG,Dong, JQ,Gao, XF,et al. In Situ Synchrotron X-ray Diffraction and Raman Spectroscopy Studies of Gd@C-82-S-8 under High Pressure[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2018,122(20):10992-10998.
APA	Xu, BG.,Dong, JQ.,Gao, XF.,Li, YC.,Sun, BY.,...&Liu, B.(2018).In Situ Synchrotron X-ray Diffraction and Raman Spectroscopy Studies of Gd@C-82-S-8 under High Pressure.JOURNAL OF PHYSICAL CHEMISTRY C,122(20),10992-10998.
MLA	Xu, BG,et al."In Situ Synchrotron X-ray Diffraction and Raman Spectroscopy Studies of Gd@C-82-S-8 under High Pressure".JOURNAL OF PHYSICAL CHEMISTRY C 122.20(2018):10992-10998.