Unveiling Microscopic Structures of Charged Water Interfaces by Surface-Specific Vibrational Spectroscopy

被引：276

作者：

Wen, Yu-Chieh ^{[1
,2
,3
,4
]}

Zha, Shuai ^{[1
,2
]}

Liu, Xing ^{[5
,6
,7
]}

Yang, Shanshan ^{[1
,2
]}

Guo, Pan ^{[5
,6
,7
]}

Shi, Guosheng ^{[5
,6
]}

Fang, Haiping ^{[5
,6
]}

Shen, Y. Ron ^{[1
,2
,3
]}

Tian, Chuanshan ^{[1
,2
,8
]}

机构：

[1] Fudan Univ, Dept Phys, State Key Lab Surface Phys, Shanghai 200433, Peoples R China

[2] Fudan Univ, Key Lab Micro & Nanophoton Struct MOE, Shanghai 200433, Peoples R China

[3] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[4] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

[5] Chinese Acad Sci, Shanghai Inst Appl Phys, Div Interfacial Water, Shanghai 201800, Peoples R China

[6] Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China

[7] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[8] Fudan Univ, Collaborat Innovat Ctr Adv Microstruct, Shanghai 200433, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 116卷 / 01期

关键词：

X-RAY-DIFFRACTION; AQUEOUS-SOLUTIONS; ACID MONOLAYERS; ABSORPTION; MOLECULES; POLARIZATION; CARBOXYLATE; HYDRATION; SALT; NA+;

D O I：

10.1103/PhysRevLett.116.016101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A sum-frequency spectroscopy scheme is developed that allows the measurement of vibrational spectra of the interfacial molecular structure of charged water interfaces. The application of this scheme to a prototype lipid-aqueous interface as a demonstration reveals an interfacial hydrogen-bonding water layer structure that responds sensitively to the charge state of the lipid headgroup and its interaction with specific ions. This novel technique provides unique opportunities to search for better understanding of electrochemistry and biological aqueous interfaces at a deeper molecular level.

引用

页数：5

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