Ir-driven Dynamics Of The 3-aminophenol-ammonia Complex

Merrill, W G

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https://hdl.handle.net/2142/50869 Copy

Description

Title

Ir-driven Dynamics Of The 3-aminophenol-ammonia Complex

Author(s)

Merrill, W G

Contributor(s)

• Crim, Fleming
• Case, Amanda
• Heid, Cornelia G

Issue Date

2014-06-16

Keyword(s)

Mini-symposium: Spectroscopy in Kinetics and Dynamics

Abstract

We report on gas-phase experiments investigating the predissociation and possible IR-driven isomerization of the 3-aminophenol-ammonia complex (3-AP-NH$_{3}$). A molecular beam of 3-AP-NH$_{3}$ is vibrationally excited with pulsed IR light, initiating an intramolecular vibrational redistribution and subsequent dissociation. The 3-AP fragment is then probed state-selectively via multiphoton ionization (REMPI) and time-of-flight mass spectrometry. Of particular interest is an IR-driven feature which we associate tentatively with a trans-cis isomerization process. We see clear correlation between the excitation of specific vibrational modes (namely the NH$_{3}$ symmetric and OH stretches) and the presence of this feature, as evidenced by IR-action and IR-depletion spectra. The feature persists atop a broader signal which we assign to the predissociation of the complex and whose cutoff in REMPI-action experiments provides an upper bound on the dissociation energy for 3-AP-NH$_{3}$.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

Permalink

http://hdl.handle.net/2142/50869

DOI

https://doi.org/10.15278/isms.2014.MH11

Copyright and License Information

Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/

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