To better understand the structure of this material, and the behaviour inferred from the DSC curves, synchrotron X-ray total scattering measurements were collected using kapton capillaries (to minimise background) at the I15-1 beamline at the Diamond Light Source facility (UK) (Figures ). Data were processed to account for absorption, background and various scattering corrections using the GudrunX software to extract total scattering structure factors, S(Q), of all the materials. The S(Q) of the IG was consistent with the observed amorphous PXRD pattern (Figure ). Composites and Ti-MOF materials exhibited the expected Bragg peaks in their S(Q) (Figures ). Pair distribution functions (PDFs) were generated by Fourier transform of the S(Q) data using the D(r) function to accentuate high r correlations. PDF analysis has been demonstrated to be a powerful technique for describing interatomic distances in MOFs, providing crucial insight into their local structure. Total and partial PDFs from the published Ti-MOF crystal structure and from crystal structures related to the IG were calculated using PDFGUI, identifying the major contributions to the experimental Ti-MOF and IG D(r) functions (Figure ). As expected, the PDF of the IG contained peaks at 1.54, 2.47 and 3.43 Å associated with P-O, Na-O and Na⋯P (i.e. the Na⋯P distance from Na-O-P bonded atoms) correlations, similar to the ones found in previous works (Figure .a). The Ti-MOF PDF pattern (Figure .b) contains similar correlations to those in the calculated partial PDFs.