Title :
Low-frequency spectra in hydrophobic environment studied by terahertz time-domain spectroscopy
Author :
Ishihara, Akané ; Iguchi, Haruka ; Tayama, Junpei ; Tominaga, Keisuke
Author_Institution :
Grad. Sch. of Sci., Kobe Univ., Kobe, Japan
Abstract :
Low-frequency spectrum of hydration water molecules around the hydrophobic probe in an aqueous solution has been obtained by using tetraalkylammonium cation as a probe and terahertz time-domain spectroscopy. The obtained spectrum of hydration water has intensity larger than that of ice and smaller than that of bulk water. This suggests that dynamics of hydration water molecules are partially restricted compared to those of bulk water.
Keywords :
hydrophobicity; positive ions; probes; submillimetre wave spectra; terahertz wave spectra; water; H2O; aqueous solution; bulk water; hydration water molecules; hydrophobic environment; hydrophobic probe; low-frequency spectra; terahertz time-domain spectroscopy; tetraalkylammonium cation probe; Absorption; Fluctuations; Ice; Probes; Solvents; Spectroscopy; Time domain analysis;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6105208
