Spectroscopic evidence for the specific Na+ and K+ interactions with the hydrogen-bonded water molecules at the electrolyte aqueous solution surfaces

被引:27
作者
Feng, Ran-ran [1 ,2 ]
Bian, Hong-tao [1 ,2 ]
Guo, Yuan [1 ]
Wang, Hong-fei [1 ]
机构
[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 100190, Peoples R China
关键词
electrolytes; hydrogen bonds; interface phenomena; ion-molecule collisions; positive ions; potassium; sodium; vibrational states; water; SUM-FREQUENCY GENERATION; AIR-LIQUID INTERFACES; VIBRATIONAL SPECTROSCOPY; AIR/WATER INTERFACE; SALT-SOLUTIONS; 2ND-HARMONIC GENERATION; ORIENTED THIOCYANATE; IONS; SIMULATIONS; ORIENTATION;
D O I
10.1063/1.3104610
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Sum frequency generation vibrational spectra of the water molecules at the NaF and KF aqueous solution surfaces showed significantly different spectral features and different concentration dependence. This result is the first direct observation of the cation effects of the simple alkali cations, which have been believed to be depleted from the aqueous surface, on the hydrogen bonding structure of the water molecules at the electrolyte solution surfaces. These observations may provide important clues to understand the fundamental phenomenon of ions at the air/water interface.
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页数:6
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共 60 条
[11]  
Ghosal S, 2005, SCIENCE, V307, P563, DOI 10.1126/science.1106525
[12]   Vibrational spectroscopic studies of aqueous interfaces: Salts, acids, bases, and nanodrops [J].
Gopalakrishnan, S ;
Liu, DF ;
Allen, HC ;
Kuo, M ;
Shultz, MJ .
CHEMICAL REVIEWS, 2006, 106 (04) :1155-1175
[13]   Air-liquid interfaces of aqueous solutions containing ammonium and sulfate: Spectroscopic and molecular dynamics studies [J].
Gopalakrishnan, S ;
Jungwirth, P ;
Tobias, DJ ;
Allen, HC .
JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (18) :8861-8872
[14]   REACTIVE UPTAKE OF CL2(G) AND BR2(G) BY AQUEOUS SURFACES AS A FUNCTION OF BR- AND I- ION CONCENTRATION - THE EFFECT OF CHEMICAL-REACTION AT THE INTERFACE [J].
HU, JH ;
SHI, Q ;
DAVIDOVITS, P ;
WORSNOP, DR ;
ZAHNISER, MS ;
KOLB, CE .
JOURNAL OF PHYSICAL CHEMISTRY, 1995, 99 (21) :8768-8776
[15]   Characterization of vibrational resonances of water-vapor interfaces by phase-sensitive sum-frequency spectroscopy [J].
Ji, N. ;
Ostroverkhov, V. ;
Tian, C. S. ;
Shen, Y. R. .
PHYSICAL REVIEW LETTERS, 2008, 100 (09)
[16]   Molecular structure of salt solutions: A new view of the interface with implications for heterogeneous atmospheric chemistry [J].
Jungwirth, P ;
Tobias, DJ .
JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (43) :10468-10472
[17]   Specific ion effects at the air/water interface [J].
Jungwirth, P ;
Tobias, DJ .
CHEMICAL REVIEWS, 2006, 106 (04) :1259-1281
[18]   Ions at the air/water interface [J].
Jungwirth, P ;
Tobias, DJ .
JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (25) :6361-6373
[19]   Ions at aqueous interfaces: From water surface to hydrated proteins [J].
Jungwirth, Pavel ;
Winter, Bernd .
ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 2008, 59 :343-366
[20]   Spiers Memorial Lecture Ions at aqueous interfaces [J].
Jungwirth, Pavel .
FARADAY DISCUSSIONS, 2009, 141 :9-30