A Study of Nonionic Surfactants at the Air−Water Interface by Sum-Frequency Spectroscopy and Ellipsometry

Langmuir ◽  
1999 ◽  
Vol 15 (4) ◽  
pp. 1400-1409 ◽  
Author(s):  
Steven R. Goates ◽  
David A. Schofield ◽  
Colin D. Bain
Keyword(s):  
Nonionic Surfactants ◽  
Water Interface ◽  
Sum Frequency ◽  
Sum Frequency Spectroscopy ◽  
Air Water Interface

scholarly journals Experimentally probing the libration of interfacial water: the rotational potential of water is stiffer at the air/water interface than in bulk liquid

2016 ◽  
Vol 18 (27) ◽  
pp. 18424-18430 ◽  
Author(s):  
Yujin Tong ◽  
Tobias Kampfrath ◽  
R. Kramer Campen
Keyword(s):  
Liquid Water ◽  
Bulk Liquid ◽  
Interfacial Water ◽  
Water Interface ◽  
Sum Frequency ◽  
Sum Frequency Spectroscopy ◽  
Air Water Interface ◽  
Vibrational Sum Frequency Spectroscopy

Vibrational sum frequency spectroscopy measurements reveal that the libration frequency of interfacial water is significantly higher than bulk liquid water, suggesting that water's rotational potential stiffens on moving from the bulk liquid to the air/water interface.

Model Behavior: Characterization of Hydroxyacetone at the Air–Water Interface Using Experimental and Computational Vibrational Sum Frequency Spectroscopy

2018 ◽  
Vol 122 (15) ◽  
pp. 3837-3849 ◽  
Author(s):  
Brittany P. Gordon ◽  
Frederick G. Moore ◽  
Lawrence F. Scatena ◽  
Nicholas A. Valley ◽  
Sumi N. Wren ◽  
...  
Keyword(s):  
Water Interface ◽  
Sum Frequency ◽  
Sum Frequency Spectroscopy ◽  
Air Water Interface ◽  
Vibrational Sum Frequency Spectroscopy

scholarly journals Propofol adsorption at the air/water interface: a combined vibrational sum frequency spectroscopy, nuclear magnetic resonance and neutron reflectometry study

Soft Matter ◽  
2019 ◽  
Vol 15 (1) ◽  
pp. 38-46
Author(s):  
Petru Niga ◽  
Petra M. Hansson-Mille ◽  
Agne Swerin ◽  
Per M. Claesson ◽  
Joachim Schoelkopf ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Neutron Reflectometry ◽  
Water Interface ◽  
Sum Frequency ◽  
Sum Frequency Spectroscopy ◽  
Air Water Interface ◽  
Vibrational Sum Frequency Spectroscopy ◽  
Nuclear Magnetic

Propofol adsorbs at the water interface forming a dense film, sitting tilted and oriented with the OH-group towards the water.

Monolayers of Hexadecyltrimethylammoniump-Tosylate at the Air−Water Interface. 1. Sum-Frequency Spectroscopy

1998 ◽  
Vol 102 (47) ◽  
pp. 9461-9472 ◽  
Author(s):  
G. R. Bell ◽  
Z. X. Li ◽  
C. D. Bain ◽  
P. Fischer ◽  
D. C. Duffy
Keyword(s):  
Water Interface ◽  
Sum Frequency ◽  
Sum Frequency Spectroscopy ◽  
Air Water Interface

Temperature Dependence of the Air/Water Interface Revealed by Polarization Sensitive Sum-Frequency Generation Spectroscopy

2018 ◽  
Author(s):  
Daniel R. Moberg ◽  
Shelby C. Straight ◽  
Francesco Paesani
Keyword(s):  
Temperature Dependence ◽  
Low Frequency ◽  
Potential Energy Function ◽  
Md Simulations ◽  
Sum Frequency Generation ◽  
Water Molecules ◽  
Water Interface ◽  
Sum Frequency ◽  
Air Water Interface ◽  
Frequency Generation

<div> <div> <div> <p>The temperature dependence of the vibrational sum-frequency generation (vSFG) spectra of the the air/water interface is investigated using many-body molecular dynamics (MB-MD) simulations performed with the MB-pol potential energy function. The total vSFG spectra calculated for different polarization combinations are then analyzed in terms of molecular auto-correlation and cross-correlation contributions. To provide molecular-level insights into interfacial hydrogen-bonding topologies, which give rise to specific spectroscopic features, the vSFG spectra are further investigated by separating contributions associated with water molecules donating 0, 1, or 2 hydrogen bonds to neighboring water molecules. This analysis suggests that the low frequency shoulder of the free OH peak which appears at ∼3600 cm−1 is primarily due to intermolecular couplings between both singly and doubly hydrogen-bonded molecules. </p> </div> </div> </div>

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