Selected Reactive Sites Tuned by High Pressure: Oligomerization of Solid-State Cyanamide

	Selected Reactive Sites Tuned by High Pressure: Oligomerization of Solid-State Cyanamide
	Dai, YX; Wang, K; Yuan, HS; Meng, X; Luo, K; Yu, DL; Liu, J; Zhang, X; Ma, YG; Tian, YJ
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2015
卷号	119 期号:23 页码:12801-12807
英文摘要	We studied high-pressure reaction of solid cyanamide in a diamond anvil cell up to a pressure of 21.7 GPa. The results of in situ high-pressure Raman spectroscopy and angle-dispersive X-ray diffraction experiments indicated the occurrence of pressure-induced oligomerization in cyanamide over 13 GPa. The Raman, NMR, and UV absorption spectra of recovered samples confirmed that the chemical reaction was irreversible and that the high-pressure products contained C=N bonds. Subsequently, results of kinetic studies showed the relation between pressure and the reaction rate. Meanwhile dependence of activation volume with pressure indicated that the steric factors affected the reaction. Additionally, the increase in the amount of CC bonds of recovered samples was attributed to the change of reactive sites of adjacent C N groups. These results suggest that the application of pressure can tune both the reactive sites and the reaction rate to affect oligomerization and even other chemical reactions.
学科主题	Chemistry; Science & Technology - Other Topics; Materials Science
类目[WOS]	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
收录类别	SCI ; EI
WOS记录号	WOS:000356317500003
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/228632]
专题	高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	Dai, YX,Wang, K,Yuan, HS,et al. Selected Reactive Sites Tuned by High Pressure: Oligomerization of Solid-State Cyanamide[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2015,119(23):12801-12807.
APA	Dai, YX.,Wang, K.,Yuan, HS.,Meng, X.,Luo, K.,...&刘景.(2015).Selected Reactive Sites Tuned by High Pressure: Oligomerization of Solid-State Cyanamide.JOURNAL OF PHYSICAL CHEMISTRY C,119(23),12801-12807.
MLA	Dai, YX,et al."Selected Reactive Sites Tuned by High Pressure: Oligomerization of Solid-State Cyanamide".JOURNAL OF PHYSICAL CHEMISTRY C 119.23(2015):12801-12807.