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Figure 6
Time-resolved XANES measurement of aqueous Fe2+(phen)3. Panel (a) shows the differential absorbance measured across the Fe K-edge (7108 to 7126 eV in 0.5 eV step size) for relative delays between the laser pump and the X-ray probe in the range −500 to 1000 fs. Panel (b) shows a time scan of the relative absorption change at an X-ray energy of 7119.5 eV, marked as a dashed line in panel (a). The fit (green solid line) returns a sample response of about 110 fs, in agreement with an LS–HS transition measured for similar systems (Lemke et al., 2017View full citation).

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 33| Part 4| July 2026|
https://doi.org/10.1107/S1600577526003735
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