中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Vibrational polarization spectroscopy of CH stretching modes of the methylene goup at the vapor/liquid interfaces with sum frequency generation
作者: Lu, R;  Gan, W;  Wu, BH;  Chen, H;  Wang, HF
刊名: JOURNAL OF PHYSICAL CHEMISTRY B
发表日期: 2004-06-03
DOI: 10.1021/jp036674o
卷: 108, 期:22, 页:7297-7306
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: In this paper we report detailed examples of the surface sum frequency generation vibrational spectroscopy (SFG-VS) as a polarization spectroscopic technique for vibrational spectral band assignment and orientational analysis for molecular groups at the interfaces. Surface sum frequency generation vibrational spectroscopy (SFG-VS) has been widely used as an important spectroscopy probe for chemical bonding, structural conformation and molecular interactions of both fundamentally and technologically important interfaces. However, the potential for SFG-VS as a polarization spectroscopic technique is yet to be fully explored. In IR and Raman studies, polarized spectroscopy (PS) can provide information on molecular symmetries, which is necessary for accurate vibrational band assignment in complex chemical environments. We shall show that SFG-vibrational polarization spectroscopy (VPS) is the polarization spectroscopic tool on this purpose for the interface, along with its advantage of submonolayer sensitivity. This ability of SFG-VPS comes from the fact that vibrational bands from different symmetry types do not have strongest peak intensities in the same polarization configuration of the SFG-VPS spectra, because molecular groups are aligned or partially aligned at the interface. We chose to study the SFG-VPS of three diols, namely, ethylene glycol, 1,3-propanediol, and 1.5-pentanediol, at the vapor/liquid interfaces as model systems for the methylene-only molecules. The polarization analysis of the SFG spectra resulted in few explicit polarization selection rules or guidelines for the assignment of the CH stretching modes of the methylene groups. These results could be used to provide clarifications for some of the disagreements and controversies still exist in the literatures. These results can also shed light on the IR and Raman studies on methylene group in the bulk condensed phases.
关键词[WOS]: AIR-WATER-INTERFACE ;  LIQUID-LIQUID INTERFACE ;  NORMAL-ALKYL CHAINS ;  RAMAN-SCATTERING ;  2ND-HARMONIC GENERATION ;  HYDROPHOBIC SURFACES ;  POLYMETHYLENE CHAINS ;  PHASE-TRANSITIONS ;  FERMI RESONANCES ;  POLYMER SURFACES
语种: 英语
WOS记录号: WOS:000221700300054
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139482
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, State Key Lab Mol React Dynam, Beijing 100080, Peoples R China

Recommended Citation:
Lu, R,Gan, W,Wu, BH,et al. Vibrational polarization spectroscopy of CH stretching modes of the methylene goup at the vapor/liquid interfaces with sum frequency generation[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2004,108(22):7297-7306.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Lu, R]'s Articles
 [Gan, W]'s Articles
 [Wu, BH]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Lu, R]‘s Articles
 [Gan, W]‘s Articles
 [Wu, BH]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace