PHOTODISSOCIATION SPECTROSCOPY AND PHOTOFRAGMENT IMAGING OF THE Fe⁺(acetylene) AND Fe⁺(benzene)₁,₂ COMPLEXES TO PROBE DISSOCIATION ENERGIES

Blais, John R. C.

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Description

Title

PHOTODISSOCIATION SPECTROSCOPY AND PHOTOFRAGMENT IMAGING OF THE Fe⁺(acetylene) AND Fe⁺(benzene)₁,₂ COMPLEXES TO PROBE DISSOCIATION ENERGIES

Author(s)

Blais, John R. C.

Contributor(s)

• Duncan, Michael A
• Dynak, Nathan John
• Colley, Jason E.

Issue Date

2023-06-23

Keyword(s)

Photodissociation and photochemistry

Abstract

Tunable laser photodissociation spectroscopy and photofragment imaging experiments are employed to investigate the dissociation energies of the Fe⁺(acetylene), Fe⁺(benzene), and Fe⁺(benzene)₂ ion-molecule complexes. In the spectroscopy experiment, continuous dissociation is observed above a certain energy threshold throughout the visible wavelength region for all three complexes. Photofragment imaging of the Fe⁺ photoproduct in the cases of Fe⁺(acetylene) and Fe⁺(benzene), and imaging of the benzene⁺ charge transfer photoproduct of Fe⁺(benzene), provide upper limits on the dissociation energies of these two complexes. The dissociation energies measured from this two-pronged approach agree nicely with values determined previously by collision-induced dissociation. However, these values are inconsistent with those produced from computational chemistry at the DFT level, despite the implementation of functionals recommended for transition metal chemistry.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Language

eng

Handle URL

https://hdl.handle.net/2142/122686

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