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. 2014 Aug 14;2014:626719. doi: 10.1155/2014/626719

Table 13.

Effect of temperature and thermodynamic parameters of protonation equilibria of inosine and IMPa.

System T (°C) p q b log⁡β Equilibrium ΔH°  
(kJ mol−1)		 ΔS°  
(JK−1 mol−1)		 ΔG°  
(kJ mol−1)
Inosine 15 1 1 8.77 Inosine −35.0 46.3 −48.8
IMP 15 1 1 9.33 (1) L− + H+⇌ LH      
1 2 15.28        
Inosine 20 1 1 8.67        
IMP 20 1 1 9.17        
1 2 15.17        
Inosine 25 1 1 8.55 IMP −33.0 64.6 −52.2
IMP 25 1 1 9.09 (2) L3−+ H+⇌ LH2− 0.32 114.6 −33.8
1 2 15.07 (3) LH2− + H+⇌LH2 −      
Inosine 30 1 1 8.44        
IMP 30 1 1 8.95        
1 2 14.99        

a p and q are stoichiometric coefficients corresponding to ligand and H+, respectively; bdata taken from reference [83]; L denotes inosine and inosine 5′-monophosphate.