Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 44, 2015
Previous Article Next Article

Single water solvation dynamics in the 4-aminobenzonitrile–water cluster cation revealed by picosecond time-resolved infrared spectroscopy

Author affiliations

Abstract

The dynamics of a solvent is important for many chemical and biological processes. Here, the migration dynamics of a single water molecule is triggered by the photoionization of the 4-aminobenzonitrile–water (4ABN–W) cluster and monitored in real time by picosecond time-resolved IR (ps TRIR) spectroscopy. In the neutral cluster, water is hydrogen-bonded to the CN group. When this CN-bound cluster is selectively ionized with an excess energy of 1238 cm−1, water migrates with a lifetime of τ = 17 ps from the CN to the NH2 group, forming a more stable 4ABN+–W(NH) isomer with a yield of unity. By decreasing the ionization excess energy, the yield of the CN → NH2 reaction is reduced. The relatively slow migration in comparison to the ionization-induced solvent dynamics in the related acetanilide–water cluster cation (τ = 5 ps) is discussed in terms of the internal excess energy after photoionization and the shape of the potential energy surface.

Graphical abstract: Single water solvation dynamics in the 4-aminobenzonitrile–water cluster cation revealed by picosecond time-resolved infrared spectroscopy

Back to tab navigation

Article information


Submitted
10 Sep 2015
Accepted
07 Oct 2015
First published
08 Oct 2015

Phys. Chem. Chem. Phys., 2015,17, 29969-29977
Article type
Paper

Single water solvation dynamics in the 4-aminobenzonitrile–water cluster cation revealed by picosecond time-resolved infrared spectroscopy

M. Miyazaki, T. Nakamura, M. Wohlgemuth, R. Mitrić, O. Dopfer and M. Fujii, Phys. Chem. Chem. Phys., 2015, 17, 29969
DOI: 10.1039/C5CP05400A

Social activity

Search articles by author

Spotlight

Advertisements