To process the obtained data, azimuthal integration and calibration were made using pyFAI software. LaB6 was used as calibrant for the detector to sample distance and angle. xPDFsuite was used for subtraction of the empty quartz glass and Kapton capillaries integration intensities and to obtain the S(Q) (Rpoly=1.20). The Fourier transform was made over the Q-range of 0.1 to 20 Å -1 of the reduced total scattering structure function (𝐹(𝑄) = 𝑄[𝑆(𝑄) -1]) as obtained from xPDFsuite. This procedure was performed using an in-house code. A Lorch window function (with Qmax=20 Å -1 ) was used to process the ex situ data (Fig. ) to reduce the effect of termination ripples in the resulting G(r) from the Fourier transform. All in situ data (Fig. and all PDFs in the Supplementary Information) are presented without the use of a Lorch function.