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This paper reports the thermodynamics of reversible oxygen binding to a dicobalt di(meso-tetraphenylporphyrin) linked by a diamido- aliphatic chain in N, Ndimethylformamide solution. Thermodynamic values(standard state 101325 Pa O2): △G (298K)=-3.1kJ mol-1, △H (298K)=-37.1kJ·mol-1, △S (298K)=-114 J.mol-1K-1,Co:O2=1:1. The ESR parameters of the dioxygen complex in DMF at 133K are as follows: g=2.000, g=2.046, A= 15G, A =22G, The pressure of dioxygen necessary for half-oxygenation of the system (P1/2 =42.7kPa at 288K) is comparable with that for cobalt substituted human hemoglobin at T state.
This paper reports the thermodynamics of reversible oxygen binding to a dicobalt di (meso-tetraphenylporphyrin) linked by a diamido-aliphatic chain in N, Ndimethylformamide solution. Thermodynamic values (standard state 101325 Pa O2): ΔG (298K) = -3.1 kJ The ESR parameters of the dioxygen complex in (mol%) are as follows: mol-1, ΔH (298K) = -37.1 kJ · mol -1, ΔS (298K) = -1.14 J.mol- 1K-1, The pressure of dioxygen necessary for half-oxygenation of the system (P1 / 2 = 42.7 kPa at 288 K) is comparable with that for. DMF at 133K is as follows: g = 2.000, g = 2.046, A = 15G, A = cobalt substituted human hemoglobin at T state.