Fig. 3
Phase distribution in the (MIL-53)(ZIF-62)(25/75) and (MIL-53)0.25(agZIF-62)0.75 CGC. a Pair distribution function (PDF) D(r) calculated via Fourier transform of the X-ray total scattering structure factor S(Q) for the crystal mixtures and CGC. The inset shows the scheme for PDF peak assignment. b Slices along the indirectly detected dimension through the 2D 1H spin-diffusion NMR spectra. Slices were taken at chemical shift of about 3 ppm, and show how polarisation transfer between the OH groups of MIL-53 and all other protons of the samples proceeds. c Spin-diffusion curves obtained by extracting integrated intensities of selected peaks within the slices through the 2D 1H spin-diffusion NMR spectra. Dashed grey line describes proton polarisation transfer between OH groups and BDC linkers of the crystal mixture, grey triangles and solid line describe polarisation transfer between OH groups and BDC linkers of MIL-53 within CGC, and orange diamond signs and solid line describe polarisation transfer between the OH groups of MIL-53 and imidazolate linkers of ZIF-62 within CGC
