where a is the decay of CN, b is an exponential fitting parameter related to rapidness of the decay, and t0 is the time needed to reach 63.2% of the expected decay, a. We restrict 0≤a≤2 and note how Eq. ( ) ensure the fit is initiated in CN(0)=6. We show the obtained fits in Figures and the derived parameters in Table . Generally, the time constant is found to decrease with increasing water content (Figure ), highlighting how water acts to enhance the decoordination of hmba linkers towards the molten state.