Ultraviolet photochemical reaction of [Fe(III)(C2O4)3]3MINUS SIGN in aqueous solutions studied by femtosecond time-resolved X-ray absorption spectroscopy using an X-ray free electron laser

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F15%3A43900337" target="_blank" >RIV/60461373:22340/15:43900337 - isvavai.cz</a>
Result on the web
<a href="http://scitation.aip.org/content/aca/journal/sdy/2/3/10.1063/1.4918803" target="_blank" >http://scitation.aip.org/content/aca/journal/sdy/2/3/10.1063/1.4918803</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4918803" target="_blank" >10.1063/1.4918803</a>

Result language
angličtina
Original language name
Ultraviolet photochemical reaction of [Fe(III)(C2O4)3]3MINUS SIGN in aqueous solutions studied by femtosecond time-resolved X-ray absorption spectroscopy using an X-ray free electron laser
Original language description
Time-resolved X-ray absorption spectroscopy was performed for aqueous ammonium iron(III) oxalate trihydrate solutions using an X-ray free electron laser and a synchronized ultraviolet laser. The spectral and time resolutions of the experiment were 1.3 eVand 200 fs, respectively. A femtosecond 268 nm pulse was employed to excite [Fe(III)(C2O4)(3)](3-) in solution from the high-spin ground electronic state to ligand-to-metal charge transfer state(s), and the subsequent dynamics were studied by observingthe time-evolution of the X-ray absorption spectrum near the Fe K-edge. Upon 268 nm photoexcitation, the Fe K-edge underwent a red-shift by more than 4 eV within 140 fs; however, the magnitude of the redshift subsequently diminished within 3 ps. The Fe K-edge of the photoproduct remained lower in energy than that of [Fe(III)(C2O4)(3)](3-). The observed red-shift of the Fe K-edge and the spectral feature of the product indicate that Fe(III) is upon excitation immediately photoreduced to F
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
—

Project
<a href="/en/project/GA13-34168S" target="_blank" >GA13-34168S: Ab Initio Simulations of X-ray Initiated Photodynamics and Spectroscopy in Water Solutions</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)