Water orientation at hydrophobic interfaces.

Autor: Strazdaite, Simona, Versluis, Jan, Bakker, Huib J.
Předmět:
Zdroj: Journal of Chemical Physics; 2015, Vol. 143 Issue 8, p1-6, 6p, 2 Diagrams, 3 Graphs
Abstrakt: We study the structure and orientation of water molecules at water/alkane and water/polydimethylsiloxane interfaces with surface specific intensity and heterodyne-detected vibrational sumfrequency generation (HD-VSFG) spectroscopy. We observe that the hydrogen-bond structure of the water molecules is enhanced at these interfaces compared to the water/air interface. We also find that the water molecules at the interface show a net orientation of their O-H groups pointing towards to the hydrophobic layer. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index