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题名: Water penetration/accommodation and phase behaviour of the neutral langmuir monolayer at the air/water interface probed with sum frequency generation vibrational spectroscopy (SFG-VS)
作者: Zhang, Zhen1, 2;  Zheng, De-sheng1, 2;  Guo, Yuan1;  Wang, Hong-fei1
刊名: PHYSICAL CHEMISTRY CHEMICAL PHYSICS
发表日期: 2009
DOI: 10.1039/b813187b
卷: 11, 期:6, 页:991-1002
收录类别: SCI
文章类型: Review
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical ;  Physics, Atomic, Molecular & Chemical
研究领域[WOS]: Chemistry ;  Physics
英文摘要: A strong and broad hydrogen bonded O-H band around 3520 cm(-1) is observed in the insoluble monolayer of the neutral liquid crystal molecules of 4 ''-n-pentyl-4-p-cyanobiphenyl (5CB) and 4 ''-n-octyl-4-p-cyanobiphenyl (8CB) throughout the whole surface density range, but not in the 4-pentyl-4'-cyanoterphenyl (5CT) monolayer, at the air/water interface. This novel spectral feature suggests the existence of an oriented water cluster species which has penetrated or accommodated into the Langmuir monolayer of the 8CB and 5CB molecules. This finding provided a molecular level mechanism for the stark difference in the phase behaviour between the CB and CT insoluble Langmuir monolayers at the air/water interface. It also calls for attention to the details of the specific water-surface interaction in mediating the structure and the phase behaviour of the molecular assemblies at the heterogeneous aqueous interfaces.
关键词[WOS]: SELF-ASSEMBLED MONOLAYERS ;  SURFACE 2ND-HARMONIC GENERATION ;  SIZE-SELECTED WATER ;  LIQUID-CRYSTAL ;  BINARY-MIXTURES ;  MOLECULAR-CONFORMATION ;  INFRARED-SPECTROSCOPY ;  AQUEOUS-SOLUTIONS ;  ORIENTATIONAL DISTRIBUTION ;  2-DIMENSIONAL FILMS
语种: 英语
WOS记录号: WOS:000262850600013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141364
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Chem, State Key Lab Mol React Dynam, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100864, Peoples R China

Recommended Citation:
Zhang, Zhen,Zheng, De-sheng,Guo, Yuan,et al. Water penetration/accommodation and phase behaviour of the neutral langmuir monolayer at the air/water interface probed with sum frequency generation vibrational spectroscopy (SFG-VS)[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2009,11(6):991-1002.
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