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. 2020 May 28;6(5):e04074. doi: 10.1016/j.heliyon.2020.e04074

Table 6.

Enthalpy and Gibbs free energy differences for pathway 2 of phenyl isocyanate and alcohol reaction when DMTDA use as a catalyst.

Molecular structure Enthalpy
ΔH [kJ mol−1]
Gibbs Free energy
ΔG [kJ mol−1]
Pre-complex_alcohol (22) -71.37 27.41
TS21 (23) -39.63 69.56
DMTMA(24)+ Urethane_AR -86.67 -36.25