Fig. 3: Pre-edge dynamics after photoexcitation.
From: Tracking nuclear motion in single-molecule magnets using femtosecond X-ray absorption spectroscopy
a Ground state (GS) and excited state pre-edge after subtracting background of main edge. There is a clear increase in the intensity of the low energy 1s to 3d band (6539.4 eV) after photoexcitation that then decays. There is a redshift of the high energy MLCT peak (6542 eV) initially that then blueshifts back to the GS value. b Energy splitting of the two peaks as a function of time calculated using Gaussian fits (Supplementary Fig. 9). The fitted line is an exponential decay with a time constant of 700 fs. c Peak areas of the two pre-edge peaks as a function of time calculated using Gaussian fits (Supplementary Fig. 9). The fitted lines are an exponential decay with time constants of 900 fs for the 1s to 3d peak and 600 fs for the MLCT peak. The dashed horizontal lines show the calculated values for the GS pre-edge. The error bars in panels b and c are calculated from the uncertainties associated with the least squares fitting presented in Supplementary Fig. 9 and describe a 95% confidence interval. Source data are provided in the Source Data folder.
