Table 6 Calculated thermodynamic parameters such as activation free energy (ΔG‡) in Kcal/mol, relative reaction free energy (ΔGr) in Kcal/mol together with the equilibrium constant (KT) for the keto-enol and enol–keto tautomerization Curcumin.

From: Fabrication and evaluation of polylactic acid-curcumin containing carbon nanotubes (CNTs) wound dressing using electrospinning method with experimental and computational approaches

Solvent

enol-keto

keto-enol

ΔG‡

ΔGr

KT

ΔG‡

ΔGr

KT

Solvent-free

60.35

2.07

0.03

58.27

-2.07

33.45

Water

56.03

-0.32

1.73

56.366

0.32

0.57

Ethanol

56.42

0.38

0.52

56.03

-0.38

1.92

Chloroform

57.12

1.05

0.17

56.07

-1.05

5.92

Acetone

56.47

0.50

0.43

55.97

-0.50

2.33

Toluene

58.12

1.88

0.042

56.24

-1.88

23.91

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