高压下正戊醇的拉曼光谱原位研究

doi:10.3964/j.issn.1000-0593(2010)04-0953-05

CORC > 北京大学 > 地球与空间科学学院

	高压下正戊醇的拉曼光谱原位研究; In-situ research on Raman spectroscopy of 1-pentanol under high pressure
	田锋 ; 郑海飞
刊名	光谱学与光谱分析
	2010
关键词	立方氧化锆压腔正戊醇拉曼光谱高压原位 Cubic zirconia anvil cell 1-pentanol Raman spectroscopy High pressure In-situ
DOI	10.3964/j.issn.1000-0593(2010)04-0953-05
英文摘要	在室温(23℃)高压条件下,利用立方氧化锆压腔研究了正戊醇在波数800~3 000 cm-1范围内的拉曼光谱。拉曼谱峰随着压力的增大变得越来越尖锐,C—H伸缩振动峰在高压下不易被分离。在0.1 MPa~1.75 GPa,其C—H伸缩振动峰均随着压力的增大向高波数方向线性移动,拉曼频移与压力的线性拟合方程分别为:P(MPa)=69.652 65.(Δνp)single,T=23℃+105.806 93,0<(Δpν)single(cm-1)≤23;P(MPa)=77.974 04.(Δpν)2 960,T=23℃+95.390 5,0<(Δνp)2 960(cm-1)≤21;P(MPa)=126...; Raman spectra in 800-3 000 cm(-1) of 1-pentanol were studied under high pressure and at ambient temperature (23 degrees C) using a cubic zirconia anvil cell. The Raman peaks become sharper at higher pressure so that each individual C-H stretching mode is difficult to be distinguished. The Raman frequencies of the C-H stretching modes shift to a higher position with increasing pressures ranging between 0.1 MPa and 1.75 GPa. And the pressure induced frequency shifts are described by P(MPa) = 69.652 65 x (deltanu(p)) (single, T = 23 degrees C) + 105.806 93 where 0 < (deltanu(p)) single (cm(-1) < or = 23 and P(MPa) =77.974 04 x (Anu(p))( 2 960, T = 23 degrees 95.390 5 where 0 < (deltanu(p))2 960 (cm(-1)) < or = 21 and P(MPa) =126.956 39 x (deltanu(p)) (2 863, T = 23 degrees) -110.648 09 where 0 < (deltanu(p)) 2 863(cm(-1)) < or = 13, respectively. The global slope is (thetanu(single)/thetaP)T (14+/- 1) cm(-)1 x GPa(-1), which can be used as a pressure sensor. Both the jumping of the frequencies and the figure under microscope indicate that the frozen pressure of the 1-pentanol at room temperature is 1.75 GPa. The molar volume change of the 1-pentanol is deltaVm = 1.84 x 10(-6) m3 x mol(-1) in the phase transformation from a liquid to a solid at 23 degrees C.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000276506100020&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); EI; PubMed; 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 2; 04; 953-957; 30
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/48534]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	田锋,郑海飞. 高压下正戊醇的拉曼光谱原位研究, In-situ research on Raman spectroscopy of 1-pentanol under high pressure[J]. 光谱学与光谱分析,2010.
APA	田锋,&郑海飞.(2010).高压下正戊醇的拉曼光谱原位研究.光谱学与光谱分析.
MLA	田锋,et al."高压下正戊醇的拉曼光谱原位研究".光谱学与光谱分析 (2010).