Fig. 3. Reduction of MIL-125 with 6 equiv. 
and 0–20 equiv. Na+ in d8-THF + CD3CN 4 : 1 v/v. Plot of e– transferred to MIL-125 (left axis), and fraction of 
ion-paired in reduced MIL-125 (right axis), versus equiv. NaTFSI added. Orange circles: equiv. Na+ associated with the reduced MIL-125, derived from the 
chemical shift. Blue circles: equiv. 
that are associated with the reduced MIL-125, derived from the change in integration of the 
resonance upon mixing with MIL-125. Black circles: total extent of reduction (sum of blue and orange). Light blue diamonds represent the fraction of the reduced MIL-125 that is associated with 
.
