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Ultrafast time-resolved X-ray absorption spectroscopy of ferrioxalate photolysis with a laser plasma X-ray source and microcalorimeter array

Journal Article · · Journal of Physical Chemistry Letters
 [1];  [1];  [1];  [1];  [2];  [3];  [1];  [1];  [4];  [5];  [1];  [3];  [6];  [1];  [1];  [1];  [1];  [4];  [7]
  1. National Institute of Standards and Technology, Boulder, CO (United States)
  2. Argonne National Lab. (ANL), Lemont, IL (United States)
  3. National Institute of Standards and Technology and Univ. of Colorado, Boulder, CO (United States)
  4. Lund Univ., Lund (Sweden)
  5. Canadian Light Source, Saskatoon, SK (Canada)
  6. National Institute of Standards and Technology, Gaithersburg, MD (United States)
  7. National Institute of Standards and Technology, Boulder, CO (United States); Univ. of Colorado, Boulder, CO (United States)
The detailed pathways of photoactivity on ultrafast time scales are a topic of contemporary interest. Using a tabletop apparatus based on a laser plasma X-ray source and an array of cryogenic microcalorimeter X-ray detectors, we measured a transient X-ray absorption spectrum during the ferrioxalate photoreduction reaction. With these high-efficiency detectors, we observe the Fe K edge move to lower energies and the amplitude of the extended X-ray absorption fine structure reduce, consistent with a photoreduction mechanism in which electron transfer precedes disassociation. We provide quantitative limits on the Fe–O bond length change. Lastly, we review potential improvements to our measurement technique, highlighting the future potential of tabletop X-ray science using microcalorimeter sensors.
Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1344424
Journal Information:
Journal of Physical Chemistry Letters, Journal Name: Journal of Physical Chemistry Letters Vol. 8; ISSN 1948-7185
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (14)

On Low-Energy Tail Distortions in the Detector Response Function of X-Ray Microcalorimeter Spectrometers journal November 2019
Beating Darwin-Bragg losses in lab-based ultrafast x-ray experiments journal July 2017
An Iron Complex with a Bent, O-Coordinated CO 2 Ligand Discovered by Femtosecond Mid-Infrared Spectroscopy journal March 2018
An Iron Complex with a Bent, O-Coordinated CO 2 Ligand Discovered by Femtosecond Mid-Infrared Spectroscopy journal March 2018
Decarboxylative C-C and C-N Bond Formation by Ligand-Accelerated Iron Photocatalysis: Decarboxylative C-C and C-N Bond Formation by Ligand-Accelerated Iron Photocatalysis journal October 2019
TES X-ray Spectrometer at SLAC LCLS-II journal September 2018
Femtosecond infrared spectroscopy reveals the primary events of the ferrioxalate actinometer journal January 2018
Time-resolved Fourier-transform infrared spectroscopy reveals the hidden bimolecular process of the ferrioxalate actinometer journal January 2019
Vibrations tell the tale. A time-resolved mid-infrared perspective of the photochemistry of iron complexes journal January 2020
A practical superconducting-microcalorimeter X-ray spectrometer for beamline and laboratory science journal May 2017
Configurable error correction of code-division multiplexed TES detectors with a cryotron switch journal June 2019
Crosstalk in microwave SQUID multiplexers journal November 2019
A transition-edge sensor-based x-ray spectrometer for the study of highly charged ions at the National Institute of Standards and Technology electron beam ion trap journal December 2019
A Transition-edge Sensor-based X-ray Spectrometer for the Study of Highly Charged Ions at the National Institute of Standards and Technology Electron Beam Ion Trap text January 2020

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