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π- hydrogen bonding between water and aromatic hydrocarbons at high temperatures and pressures

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Title: π- hydrogen bonding between water and aromatic hydrocarbons at high temperatures and pressures
Authors: Furutaka, Seiya Browse this author
Ikawa, Shun-ichi2 Browse this author
Authors(alt): 井川, 駿一2
Issue Date: 2002
Publisher: American Institute of Physics
Journal Title: The Journal of Chemical Physics
Volume: 117
Issue: 2
Start Page: 751
End Page: 755
Publisher DOI: 10.1063/1.1484105
Abstract: Infrared OH stretching absorption of HDO isolated in aromatic hydrocarbons have been measured at temperatures of 473 and 523 K and at pressures in the 100–350 bar range. The peak frequencies are dependent on the solvents and their order, benzene>toluene>ethylbenzene>cumene>o-xylene~m-xylene>mesitylene, is exactly the same as the order for the ionization potentials of the hydrocarbons. Shifts of the frequencies from that of HDO in hexane, which was measured as a reference at the same temperature and pressure, were analyzed using a charge transfer theory for hydrogen bonding. Distances between the water molecule and a solvent phenyl ring were estimated to be 2.8±0.1 and 2.9±0.1 Å at 473 and 523 K, respectively. These values are consistent with a structure of a water–benzene complex determined by a jet-cooled microwave spectroscopy. These facts suggest that the -hydrogen bond between water and aromatic hydrocarbons exists even at the high temperatures under pressure.
Rights: Copyright © 2002 American Institute of Physics
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 井川 駿一

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