Skip to main content

Research Repository

See what's under the surface

Advanced Search

Photoaquation mechanism of hexacyanoferrate(II) ions: ultrafast 2D UV and transient visible and IR spectroscopies

Reinhard, Marco; Auböck, Gerald; Besley, Nicholas A.; Clark, Ian P.; Greetham, Gregory M.; Hanson-Heine, Magnus W.D.; Horvath, Raphael; Murphy, Thomas S.; Penfold, Thomas J.; Towrie, Michael; George, Michael W.; Chergui, Majed

Authors

Marco Reinhard

Gerald Auböck

Nicholas A. Besley

Ian P. Clark

Gregory M. Greetham

Magnus W.D. Hanson-Heine

Raphael Horvath

Thomas J. Penfold

Michael Towrie

Michael W. George

Majed Chergui



Abstract

Ferrous iron(II) hexacyanide in aqueous solutions is known to undergo photoionization and photoaquation reactions depending on the excitation wavelength. To investigate this wavelength dependence, we implemented ultrafast two-dimensional UV transient absorption spectroscopy, covering a range from 280 to 370 nm in both excitation and probing, along with UV pump/visible probe or time-resolved infrared (TRIR) transient absorption spectroscopy and density functional theory (DFT) calculations. As far as photoaquation is concerned, we find that excitation of the molecule leads to ultrafast intramolecular relaxation to the lowest triplet state of the [Fe(CN)6]4– complex, followed by its dissociation into CN– and [Fe(CN)5]3– fragments and partial geminate recombination, all within

Journal Article Type Article
Publication Date May 31, 2017
Journal Journal of the American Chemical Society
Print ISSN 0002-7863
Electronic ISSN 1520-5126
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 139
Issue 21
Pages 7335-7347
APA6 Citation Hanson-Heine, M. W. D., Reinhard, M., Auböck, G., Besley, N. A., Clark, I. P., Greetham, G. M., …Chergui, M. (2017). Photoaquation mechanism of hexacyanoferrate(II) ions: ultrafast 2D UV and transient visible and IR spectroscopies. Journal of the American Chemical Society, 139(21), 7335-7347. https://doi.org/10.1021/jacs.7b02769
DOI https://doi.org/10.1021/jacs.7b02769
Publisher URL http://pubs.acs.org/doi/abs/10.1021/jacs.7b02769
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in Journal of the American Chemical Society, copyright © American Chemical Society after peer review. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/jacs.7b02769

Files

NB Ferrocyanide-Final.pdf (3 Mb)
PDF

Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





You might also like



Downloadable Citations

;