Infrared photodissociation spectroscopy of aniline+-(water)1,2 and aniline+-(methanol)1,2
Infrared photodissociation spectra of the aniline ion solvated by water and methanol molecules are measured in the 2600–3800 cm-1 region. Substantially red-shifted and broadened transitions are distinctly observed at 3105 and 2915 cm-1 for aniline+-(H2O)1 and aniline+-(CH3OH)1, respectively, and assigned to the stretching vibration of the hydrogen-bonded NH oscillator of the aniline+ moiety. The spectra of aniline+-(H2O)2 and aniline+-(CH3OH)2 demonstrate a large perturbation to both of the NH oscillators, indicating that each NH bond is bound to a solvent molecule in the most stable structure.
This work was supported in part by the Joint Studies Program (2001) of the Institute for Molecular Science and the Grant-in-Aid for Scientific Research (No. 11440177) from the Ministry of Education, Culture, Sports, Science and Technology of Japan.
This is a postprint of an article published by Elsevier B.V. in Chemical Physics Letters, 2002, available online: http://doi.org/10.1016/S0009-2614(02)00641-3
Chemical Physics Letters
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