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Inhomogeneous solvation in an aniline—ethanol solution studied by laser photoionization of a liquid beam

✍ Scribed by Fumitaka Mafuné; Yoshihiro Takeda; Takashi Nagata; Tamotsu Kondow

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
542 KB
Volume
218
Category
Article
ISSN
0009-2614

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✦ Synopsis

A continuous liquid flow of an aniline-ethanol (AN-EtOH) solution was introduced into a vacuum. The liquid beam was irradiated by a focused UV laser in the range 265-300 nm, and product ions ejected into th'e vacuum were analyzed by a reflectron time-of-flight mass spectrometer. Ions of AN: (n > 1 ), ANi . (EtOH), (n 2 1, m 2 1) and H+ . (EtOH), (m 2 1) were observed in the gas phase. The essential feature of the excitation spectrum for AN+.EtOH agrees with that of the absorption spectrum of a dilute solution of aniline in ethanol, whereas the AN: spectrum resembles the UV absorption spectrum of an aniline crystal. These findings indicate an inhomogeneous distribution of aniline molecules in the AN-EtOH solution.

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