Phase Transitions and Polymerization of C6H6-C6F6 Cocrystal under   Extreme Conditions

doi:10.1021/acs.jpcc.6b11245

CORC > 北京大学 > 化学与分子工程学院

	Phase Transitions and Polymerization of C6H6-C6F6 Cocrystal under Extreme Conditions
	Wang, Yajie ; Wang, Lijuan ; Zheng, Haiyan ; Li, Kuo ; Andrzejewski, Michal ; Hattori, Takanori ; Sano-Furukawa, Asami ; Katrusiak, Andrzej ; Meng, Yufei ; Liao, Fuhui ; Hong, Fang ; Mao, Ho-Kwang
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2016
关键词	HIGH-PRESSURE X-RAY CHEMICAL-REACTIONS CRYSTAL-STRUCTURE RAMAN-SPECTRA BENZENE I HEXAFLUOROBENZENE CHEMISTRY AMORPHIZATION STABILITY
DOI	10.1021/acs.jpcc.6b11245
英文摘要	Pressure-induced polymerization (PIP) of aromatic molecules can generate saturated carbon nanostructures. As a strongly interacted pi-pi stacking unit, the C6H6-C6F6 adduct is widely applied in supramolecular chemistry, and it provides a good preorganization for the PIP. Here we investigated the structural variation of C6H6-C6F6 cocrystal and the subsequent PIP process under high pressure. Four new molecular-complex phases V, VI, VII, and VIII have been identified and characterized by the in situ Raman, IR, synchrotron X-ray, and neutron diffraction. The phase V is different from the phases observed at low temperature, which has a tilted column structure. Phases VI and VII have a structure similar to phase V. Phase VIII polymerizes irreversibly upon compression above 25 GPa without any catalyst, producing sp(3)(CH/F)(n) materials. The pi-pi interaction is still dominant below 0.5 GPa but is most likely to be overstepped under further compression, which is important for discussing the supramolecular phase transition and the polymerization process.; NSAF [U1530402]; National Natural Science Foundation of China (NSFC) [21601007, 21501162]; U.S. Department of Energy [DE-AC02-05CH11231]; J-PARC user programs [2016A0191]; SCI(E); ARTICLE; zhenghy@hpstar.ac.cn; likuo@hpstar.ac.cn; 51; 29510-29519; 120
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/457960]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Wang, Yajie,Wang, Lijuan,Zheng, Haiyan,et al. Phase Transitions and Polymerization of C6H6-C6F6 Cocrystal under Extreme Conditions[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2016.
APA	Wang, Yajie.,Wang, Lijuan.,Zheng, Haiyan.,Li, Kuo.,Andrzejewski, Michal.,...&Mao, Ho-Kwang.(2016).Phase Transitions and Polymerization of C6H6-C6F6 Cocrystal under Extreme Conditions.JOURNAL OF PHYSICAL CHEMISTRY C.
MLA	Wang, Yajie,et al."Phase Transitions and Polymerization of C6H6-C6F6 Cocrystal under Extreme Conditions".JOURNAL OF PHYSICAL CHEMISTRY C (2016).