This .zip file contains:

• source data for Figure 2 (.xlxs format). This is a table of the calculated 17-oxygen NMR parameters for a range of different MOF structures. The data is the same as that presented in Table 2. – NMR spectroscopy data (.dx format). Raw solid state NMR spectroscopy data is provided. The raw data is for all of the solid-state NMR work presented in this study. Solution-state NMR spectra of acid-digested MOFs are also provided. – X-ray diffraction data (.csv format). Raw powder X-ray diffraction data for the studied MOFs is provided. – Computationally-derived structure files (.cif and .xyz). Geometry-optimised computational structures are provided for amine-functionalised MOFs (.cif format) and amine-functionalised silicas (.xyz format). See the main manuscript for more details.