The normalized concentrations of linkers (see Exp. Section) in the liquid state during the reaction of UiO-67-bpdc and bpydc(sol) as functions of time in three solvent systems. Reactions were performed at 57 °C and monitored using in situ 1H NMR spectroscopy. Dots represent the spread of the normalized concentrations calculated from the mass of MOFs present and the uncertainty of the balance (±0.1 mg). For clarity, only every 10th data point is shown.