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Figure 4
(a) [P_{2}(\cos\theta_{Q})], with [\theta_{Q}] as in equation (13)[link], mapped on the CSPAD. The azimuthal angle (φ) is defined to be zero at the projection of the laser polarization axis on the detector surface. A radial bin corresponding to Q = 2 Å−1 is selected. (b) Averaged difference scattering pattern at 4.5 ps after photoexcitation of PtPOP in water. For comparison, a full scattering pattern is shown in Fig. S1 of the supporting information. (c) Value of P2 for the specific radial bin selected in panel (a) as a function of azimuthal angle φ, corresponding to Q = 2 Å−1. (d) Difference scattering signal [\Delta S] at Q = 2 Å−1 versus P2 (black dots) and straight line fit (red). The intercept with P2 = 0 yields the isotropic scattering signal and the slope yields the anisotropic scattering signal, according to equation (11)[link]. The uncertainties ([\sigma_{\Delta S_{0}}] and [\sigma_{\Delta S_{2}}]) are also estimated from the fit and further described in the text.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 25| Part 2| March 2018| Pages 306-315
https://doi.org/10.1107/S1600577517016964
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